OS/2 2.1 - README
_________________

   Welcome to OS/2* 2.1.  This README provides
   helpful hints found during testing as well as
   updated information that was not available at the
   time the publications were printed.  It is divided
   into the following categories:

   o   General System Considerations
   o   WIN-OS/2 Application Compatibility
   o   DOS Application Compatibility
   o   OS/2 Application Compatibility
   o   DOS and WIN-OS/2 Multimedia Application
       Compatibility
   o   Network
   o   Display Adapters
   o   Audio Adapters
   o   Printers
   o   Scanners
   o   Mahjongg Game
   o   Trademarks

   A separate README file for MMPM/2 is contained
   in the MMPM/2 program.




GENERAL SYSTEM CONSIDERATIONS

   o   This updated version of OS/2 2.1 includes
       additional APM support that was not available
       for the original OS/2 2.1 release.  Laptops
       with 32 bit protect mode APM are now
       supported.  Refer to README.INS for additional
       information on APM support.

   o   Your system .INI files might be read-only. As a result,
       the system will not update the .INI files.  When this
       happens, the position of the icons will not be saved.
       To resolve this problem go to the directory where you system .INI
       files are located C:\OS2 (default).  Then, type the following:

            ATTRIB -r *.ini

       Shut down your system and when it starts, your system .INI
       files are updated.


   o   OS/2 2.1 uses a system proportional font
       that is designed to meet the International
       Standards Organization (ISO) 9241 standard
       and the German DIN 66234 standard on
       suitable hardware.

       ISO compliant fonts cause some text strings
       to be clipped.  If you do not want to use
       ISO compliant fonts, modify the OS2.INI
       file to install fonts that are not ISO
       compliant.  Font changes made in the
       OS2.INI file are global across all
       applications.  If you have REXX installed,
       you can type the following information into
       a CMD file and use it to change the font.

           /* */
           call RxFuncAdd "SysIni", "RexxUtil", "SysIni"
           AppName = "PM_SystemFonts"
           KeyName = "DefaultFont"
           FontName = "10.System Proportional Non-ISO"
           call SysIni "USER", AppName, KeyName, FontName||"0"x
           exit

       After the file has been run, shut down and
       restart the system.

   o   If you experience video corruption:
       -   Display the pop-up menu for the
           desktop; then select Refresh to redraw
           the desktop.
       -   If the screen goes blank, press Alt+Esc
           to switch between the applications to
           force repainting of the screen.


   o   DOS images on the hard disk (VMBs) need to
       use the FSFILTER and FSACCESS drivers
       provided with this version of OS/2.
       FSFILTER and FSACCESS drivers are located in
       the \OS2\MDOS directory.

   o   The Check disk option for a CD-ROM object
       will not display information about the
       CD-ROM.  To obtain information about the
       CD-ROM:
       1.  Point to the CD-ROM drive object.
       2.  Click mouse button 2.
       3.  Select the arrow to the right of Open.
       4.  Select Details view.

   o   During a system shutdown, there might be
       times when the "Shutdown is completed"
       message is not displayed.  If this happens,
       wait until all disk activity is completed, and
       then power off the system.

   o   If you are installing OS/2 2.1 over a
       system that has OS/2 2.0 installed, the
       desktop directory name will be "OS!2_2.0_D"
       and the title of the desktop will be "OS/2
       2.0 Desktop".  On a system that has OS/2
       2.1 installed, the desktop directory name
       will be "Desktop".

   o   If you have a preinstalled system, and you
       change your country or keyboard configuration
       using the Configure Preinstalled System program,
       located in the Configuration Tools folder, the
       changes occur only for OS/2 sessions.
       To configure the country and keyboard for WIN-OS/2*
       sessions, use the International icon from the
       WIN-OS/2 Control Panel.

   o   After installing OS/2 2.1 on your system, use the
       Migrate Applications program instead of the Selective Install
       program to migrate your programs.  The
       Migrate Applications program is located in the System
       Setup folder.

   o   If you are running CHKDSK from the command line
       without the /F parameter on an HPFS partition which also
       contains your SWAPPER.DAT file, you may receive a SYS0552
       error message. This message can be ignored. If you are using
       CHKDSK from the popup menu of a drive icon, you may receive a
       WARNING message stating "The disk is in use or locked by
       another process." If this occurs, CHKDSK will not let you
       display the graphical representation of disk usage.

   o   Added support for Boot Manager exists on a disk other than
       Disk 1.  The ability to delete and re-install the Boot
       Manager requires that you exit FDISK after you delete the
       Boot Manager and re-start FDISK to install Boot Manager again.
       This is true even if you are going to place it in the same
       partition.  This means you would have to re-enter the partition
       names.


  o  The kernel debug diskettes shipped with the Developer's Toolkit for
     OS/2 version 2.1 will not work with OS/2 version 2.11.  (The kernel
     debug files for OS/2 version 2.11 are located on the OS/2 version
     2.11 CD-ROM.  Please reference the Kernel Debugger Installation
     README file in the OS2TK21\DEBUG sub-directory on the CD for more
     information.)

     If you do not have access to this CD-ROM, you can retrieve the
     kernel debug files for OS/2 version 2.11 electronically through the
     IBM Personal Computer Company Bulletin Board System (PCC BBS)
     sponsored by the IBM Personal Systems Help Center in Raleigh, North
     Carolina.  The PCC BBS is available 24 hours a day on a toll-call
     basis with  no access charge to the bulletin board.  To access the
     PCC BBS call 1-919-517-0001.

     Requirements for the asynchronous electronic connection to the PCC
     BBS are:

       * A modem that support 1200 to 14400 baud
       * Communication software that supports 8 bit file transfers
       * A switched telephone line.

     The modem should be set to:

        - eight data bits
        - one stop bit
        - no parity
        - standard transmission speed from 1200 to 14400 baud.

     Refer to the bulletin titled "OS/2 2.11 Kernel Debug Files" in
     file area 11 (OS/2 Programming) on the PCC BBS for downloading
     instructions once you are  connected.

     The kernel debug files will also be available on the Developer
     Connection for  OS/2 Volume 3 CD-ROM.



WIN-OS/2 APPLICATION COMPATIBILITY

   o   The original WIN-OS/2 color scheme was added
       to the list of available color schemes in
       the WIN-OS/2 color panel.  If you change color
       schemes and would like to return to the original
       color scheme, select WIN-OS/2 Original.

   o   The performance of Windows** programs that
       use floating point operations can be
       improved by changing the WIN-OS/2 setting
       WIN_RUN_MODE to Enhanced Compatibility.

   o   Windows scanning programs should be run in
       a WIN-OS/2 full-screen session to avoid
       video corruption.

   o   To ensure the integrity of 16-color bit
       maps on SVGA, XGA*, and 8514 systems, run
       Microsoft** Paint Brush in a WIN-OS/2
       full-screen session.

   o   Some messages encountered in a WIN-OS/2
       window session request that you select
       either Ignore or Close; when, the only
       options are Ignore and OK.  Select OK
       instead of Close.

   o   If you are using a WIN-OS/2 window session,
       an OS/2 Presentation Manager** session, and a
       DOS full-screen session, Alt+Esc might not
       sequence through all of the windows
       correctly.  Alt+Esc might switch to the
       WIN-OS/2 session every other time, or the
       DOS full-screen session might never be
       displayed.

       To avoid this problem, press Ctrl+Esc or
       press mouse buttons 1 and 2 at the same
       time to display the Window List.  Then select
       the desired session.

   o   If you are in a full-screen WIN-OS/2
       session and transparent desktop icons appear over open
       windows, minimize or maximize the window to
       force repainting.

   o   During installation of the Windows 3.1 SDK,
       a message is displayed stating that the
       installation program cannot find
       KRNL286.EXE or KRNL386.EXE.  Ignore the
       message and continue installation.  The SDK
       will function normally.

   o   If you are using the Winsleuth Gold
       hardware diagnostics program:

       -   Do not run Chip test (a RAM test
           program).  Chip test attempts to lock
           hardware interrupts.  OS/2 2.1 does not
           allow programs to lock hardware
           interrupts.

       -   When the video mode hardware test
           switches from character to graphics
           mode, a "suspended" message might
           appear.  If the message appears, select
           Full-screen from the Sessions System
           menu.  Testing will resume.

APPLICATION NOTES:

    Access Dr. Watson** Hollywood** WinRoach**
    ------------------------------------------
    Run in a WIN-OS/2 full-screen session.


    AmiPro** 2.0 and 3.0
    --------------------
    Equation symbols might be incorrect after
    certain printer drivers are installed.


    ATM fonts
    ---------
    WIN-OS/2 includes ATM fonts Version 2.5.  If
    you were using a previous version of ATM fonts
    with your Windows programs, you can upgrade to
    the new ATM fonts provided by WIN-OS/2.  See
    the "OS/2 2.1 Using the Operating System" book
    for instructions.


    Borland Turbo and Pascal debugger
    ----------------------------------
    Run in a full-screen session.


    CorelDRAW** 2.0
    -------------
    Install from a DOS or OS/2 session.



    Facelift** Fonts
    ----------------
    Modify the SYSTEM.INI file after the fonts are
    installed:

    1.  Edit the SYSTEM.INI file in the \OS2\WINOS2
        directory.
    2.  Change the sdisplay.drv= line to sdisplay.org=.
    3.  Copy the display.drv= line to the next line in
        the file.  Add an "s" to the beginning of the
        new (copied) line.
    4.  Save and exit the file.
    5.  Restart WIN-OS/2.


    FoxPro** 2.5
    ------------
    Install using a WIN-OS/2 Enhanced-compatibility
    mode session, but run in a WIN-OS/2
    standard-mode session.


    FrameMaker**
    ------------
    Use a mouse to select table cells.


    Lotus Improv 2.0 for Windows
    ----------------------------
    Must be installed with WIN-OS/2 running in
    enhanced mode.


    Microsoft Windows Printing System
    ---------------------------------
    The OS/2 spooler must be disabled.  If you are
    using a parallel printer, direct the output of
    the printer to LPT1 instead of LPT1.OS2.


    Norton Desktop** 2.0
    ------------------
    Run in a WIN-OS/2 full-screen standard-mode session.


    Paint Brush
    -------------
    To ensure the integrity of 16-color bit maps on
    SVGA, XGA, and 8514 systems, run Paint Brush in
    a WIN-OS/2 full-screen session.

    If you are using the Paint Brush program in a
    WIN-OS/2 window session, the mouse pointer/hourglass
    will not disappear when the Zoom In option is
    selected from the View menu.  In a full-screen
    WIN-OS/2 session, the mouse pointer/hourglass
    will disappear and only the Zoom In box will
    remain on the screen.

    If you are using Paint Brush to paint single
    pixels in zoom-in mode, the pixel being painted will look
    unpainted where the mouse pointer covers it.
    Zoom out and in again to see the entire pixel painted correctly.


    Powerpoint** 3.0
    ----------------
    If you are displaying the DROPBXV.PPT and
    GRIDWRVK.PPT demo slides in 640x480x256 resolution,
    you might see small horizontal line corruption.

    If you are using a WIN-OS/2 window, you might
    get incorrect background color when viewing a
    thumbnail of a template.  This will not affect
    the running of the application.


    Video for Windows
    -----------------
    Run in a full-screen session.

    If you configure video animation to run full-screen
    in Video playback, deselect Skip video frames if
    behind, to eliminate any corruption of the video
    during play.


    WindowWorks**
    -------------
    Install in a WIN-OS/2 full-screen session.



DOS APPLICATION COMPATIBILITY

   o   Use OS/2 system utilities.  DOS system
       utilities might not recognize the extended
       attributes associated with a file.

   o   OS/2 provides integral disk caching and
       memory optimization functions.  Use of the
       equivalent functions that are provided with
       MS-DOS** 6.0 is not necessary and might produce
       errors.

   o   It is not necessary to run SHARE.EXE in a DOS session.
       OS/2's DOS emulation provides SHARE.EXE compatible to that which
       comes with DOS versions 5.x and 6.x.




APPLICATION NOTES:

    DOS Games
    ---------
    For performance reasons, play in a DOS
    full-screen session.  Change the DOS setting
    VIDEO_8514A_XGA_IOTRAP to OFF.


    Fotoman**
    ---------
    If you have problems running Fotoman, set the
    DOS COM_DIRECT_ACCESS setting ON.


    Freelance Graphics**
    --------------------
    If you are using Freelance in a WIN-OS/2
    window, you might get incorrect background
    color when viewing a thumbnail of a template.
    This will not affect the running of the
    application.


    Harvard Graphics** 3.0
    --------------------
    If you have problems running Harvard Graphics 3.0
    change the DOS setting VIDEO_8514A_XGA_IOTRAP to OFF.


    Maxis Sim City 2000 for DOS
    ---------------------------
    Under the Program tab for the program object, set the
    Optional Parameters to NO_MEM_CHK.  Under the Session Tab,
    select the DOS_SETTINGS button and set DPMI_MEMORY_LIMIT to 8.


    Microsoft MSCDEX
    ----------------
    Microsoft MSCDEX.EXE will only run in an OS/2 virtual
    machine boot (VMB) seesion.  If you are using an OS/2
    supported CD-ROM drive (your CD-ROM drive has an OS/2
    specific driver) you should be able to run your CD-ROM
    based DOS program in a virtual DOS machine (VDM) session
    without MSCDEX.EXE running, since VCDROM.SYS emulates
    MSCDEX function in a VDM.  To run DOS multimedia applications,
    change the DOS_SETTING, INT_DURING_IO to ON, for the program object.

    Intel** SatisFAXtion**
    ----------------------
    Must be run in a specific DOS session, unless
    you do the following before you install the program:

    1.  Make a copy of your AUTOEXEC.BAT file and
        name it AUTOEXEC.FAX.
    2.  Install the program.
    3.  Rename the AUTOEXEC.BAT file FAX.BAT.
    4.  Rename the AUTOEXEC.FAX file AUTOEXEC.BAT.
    5.  Make a program object for the SatisFAXtion
        program.
    6.  Change the value of the DOS_AUTOEXEC
        setting for the object to FAX.BAT.
    7.  Save and exit the Settings notebook.


    Microsoft C/C++ 7.0 Linker
    --------------------------
    If you are using Microsoft C/C++ 7.0, configure
    the program object's DOS_SETTINGs with DPMI_DOS_API=ENABLED.
    Also, modify the AUTOEXEC.BAT being used for the session
    so that the Microsoft \C700\BIN directory is searched first.
    For example:

          PATH X:\C700\BIN; C:\OS2;C:\OS2\MDOS;C:\OS2\MDOS\WINOS2;C:\;


    Wayne Gretsky's Hockey Game
    ---------------------------
    Not supported.


    Wing Commander** II
    -------------------
    Set HW_TIMER to OFF.


    Terminator Game
    ---------------
    Must use a joystick.




OS/2 APPLICATION COMPATIBILITY

   o   Closing OS/2 applications that use the
       hardware palette (typically picture viewers
       or sample graphic applications)
       occasionally causes a repaint problem on
       the desktop.  If the windows do not repaint
       correctly, a refresh will restore the
       desktop, but any windows that are opened or
       moved will still have the problem.
       Restarting the system is the only way to
       completely correct this problem.

   o   If you are using Lotus 123G for OS/2 or Lotus
       Freelance Graphics for OS/2, you need to run
       the following utility prior to using these
       products with OS/2 2.1.
       1.  Change to the  Lotus
           directory that contains the application.
           For example, type:

             CD \123G

       2.  Back up the LD2CORE.DLL file.  For
           example, type:

             COPY LD2CORE.DLL LD2CORE.BAK

       3.  Run the update program.  Type:

             LD2FIX

       The Lotus program is now updated.  You need to
       shut down and restart your system for these changes
       to take effect.


APPLICATION NOTES:

     Communications Manager/2
     ------------------------
     When used with Host Graphics support (HGINST)
     you might experience shutdown problems.
     Ensure that the following GDDM fixes have been
     applied to the host system:

       UN36882 - MVS
       UN38883 - VM/SP
       UN38884 - VM/XA SP
       UN38885 - DOS/VSE

     CorelDRAW 2.5
     -------------
     At the end of CorelDRAW 2.5 installation, you
     might experience problems if you select one
     of the View README options.  The View README
     options are "Yes" and "No".

     If you select Yes, CorelDRAW will not run.
     Icons will be generated.  You must restart your
     system and recreate each icon, using the Migrate
     Applications program.

     If you select No, CorelDRAW will not run.  A
     folder will appear without icons.  You must
     restart your system and create each icon, using
     the Migrate Applications program.

     For information on the Migrate Applications
     program, refer to the OS/2 2.1 Using the
     Operating System book.


    NetView DM/2 (NVDM/2)
    ---------------------
 o   If you are using the CID method of
     installation, you will need an updated version
     of the LAPSCID.DLL file.  This file is
     available as LAPDLL.ZIP on the CompuServe
     OS2SUPPORT forum, Lib #17 and the OS2BBS
     on TALKLINK.

  o  Response install running under NetView to a SVGA or
     dual display system, with the primary as 8514, must
     have 10MB or more on the target system.  Actual requirements
     depend on the applications running while using the response install.



    IBM LAN Server 2.0 and 3.0 Remote Installation
    Program Load (RIPL)
    ----------------------------------------------
    An updated version is needed to run with OS/2 2.1.
    The diskette image is available as 2IRIPL.ZIP
    on the CompuServe OS2SUPPORT forum, Lib #17 and
    the OS2BBS on TALKLINK.

    IBM LAN Server DLR 2.0, 3.0
    ---------------------------
     When running WIN-OS2 in a VMboot environment, with DOS
     and IBM LAN Server DOS LAN Requester 2.0 or 3.0, the
     logoff option causes the WIN-OS2 session to freeze.
     This problem occurs when network logon is performed
     prior to entering WIN-OS2.  To resolve the problem,
     do the following:

     -  Do not use the network logoff in WIN-OS2 when running
        LAN Server DOS LAN Requester 2.0 or 3.0.



    WordPerfect** 5.2 for OS/2
    --------------------------
    If you are using SVGA hardware, you must run
    this application in VGA mode.


DOS AND WIN-OS/2 MULTIMEDIA APPLICATION COMPATIBILITY

   o   The following WIN-OS/2 and DOS Settings
       should be used for Multimedia applications:

            DOS/WIN     INT_DURING_IO               ON
            DOS/WIN     HW_TIMER                    ON
            WIN         VIDEO_SWITCH_NOTIFICATION   ON
            WIN         VIDEO_8514A_XGA_IOTRAP      OFF
            DOS/WIN     VIDEO_RETRACE_EMULATION     OFF
            DOS         DPMI_MEMORY_LIMIT           8


APPLICATIONS NOTES:

    Action!** 2.0
    -------------

    Run in a WIN-OS/2 full-screen session.  Change the
    following line in the AUTOEXEC.BAT file:

       SET TEMP=C:\


    Animation Works** 1.0
    ---------------------
    Run in 1024x768 resolution.


    IconAuthor** 4.0
    ----------------
    If you are running the demo for this program,
    you must exit and reenter the WIN-OS/2 session
    before running the actual application.


    LinkWay* Live 1.0 (Tool Series)
    --------------------------------
    Use the following DOS setting to make the demo
    run properly:

      DOS_RMSIZE=576


    MIDI
    ----
    Make sure that the MIDI mapper (in the Control
    Panel) and channels are properly set to
    the sound adapter.


    Nautilus** 1.6 and 1.76
    -----------------------
    Run in a WIN-OS/2 full-screen session.



NETWORK


   o   Some systems could experience problems using Win-OS/2 with
       version 2.0 of the Novell Netware Requester on this version
       of the operating system.  To correct the problems, it is necessary
       to upgrade to Novell Netware Requester for OS/2 Version 2.1.

   o   The Workplace Shell login is not compatible
       with NetWare** 4.0 Directory Services and
       should be disabled unless you are using the
       NetWare 4.0 Bindery Compatibility mode.  To
       disable the login:
       1.  Edit the CONFIG.SYS file.
       2.  Remove the CONNECTIONS option from SET
           AUTOSTART.
       3.  Save and exit the CONFIG.SYS file.
       4.  Restart the system to activate the
           changes.

   o   If you are using the NetWare Requester
       version 2.01 (which ships with NetWare 4.0) but
       have no NetWare 4.0 servers, you can
       increase the speed of the login process by
       turning the Directory Services off.  To
       turn the services off:
       1.  Edit NET.CFG file in the root directory
           of the boot drive.
       2.  Add "Directory Services Off" to the file.
       3.  Save and exit the file.

   o   Novell** NetWare Requester 2.0 and 2.01
       programs NMPIPE.SYS, NPSERVER.SYS, and
       NPDAEMON.EXE require that
       information be added to the OS2VER file.
       To add this information to the file:
       1.  At an OS/2 command prompt, type: ATTRIB
           -h -r -s OS2VER
       2.  Edit the OS2VER file in the root
           directory of the boot drive.
       3.  Type the following information in the
           file:

               20=NMPIPE.SYS
               20=NPSERVER.SYS
               20=NPDAEMON.EXE

       4.  Save and exit the file.
       5.  Type ATTRIB +h +r +s OS2VER

   o   If you are using FFST/2 (for example, if
       you enable the FFST/2 feature when
       installing Communications Manager/2 or Data
       Base Manager/2), REM out the
       "RUN=...\EPW.EXE" statement in your
       CONFIG.SYS file.  To utilize FFST/2
       technology, add a "DETACH EPW.EXE" as the
       first statement in your STARTUP.CMD file.



DISPLAY ADAPTERS (IMAGE, SVGA, XGA, 8514)

   o   The OS/2 operating system will experience
       video problems similar to those observed in
       a DOS environment.  These problems are due
       to the failure of a BIOS video mode set.
       An example of this problem is the video
       image on an ALR** Modular PS with a
       FlexView** 2x SVGA display failing to occupy
       the entire screen in 1024 x 768 mode.

   o   If you are using an LCD display and have
       difficulty locating the mouse pointer on
       the screen, you can increase the size of
       the pointer if you are using 640x480
       resolution.  To change the size of the
       pointer (if you have REXX installed):
       1.  Use an editor to create a file called
           LARGE.CMD.
       2.  Add the following information to the
           file.

             /* LARGE.CMD Set VGA pointers to large */
             /* (c) Copyright IBM Corp. 1992, All rights reserved */
             call RxFuncAdd "SysIni", "RexxUtil", "SysIni"
             call SysIni "USER", "PM_IBMVGA", "CURSOR_SIZE", "1",
             say Result
             exit

       3.  Save and exit the file.
       4.  At an OS/2 command prompt, type "LARGE"
           and press Enter.

       This program will increase the size of the
       cursor.  To force a standard size pointer,
       replace the "1" in the program with a "2".
       To let the system select the size of the
       pointer, replace the "1" in the program
       with a "0".

   o   Users of the NCR** Safari notebook, SSL/25,
       should modify the following information in
       the CONFIG.SYS file on their startup drive
       to allow video register shadowing to be
       processed correctly in OS/2 2.1.
       Change:

           DEVICE=C:\OS2\MDOS\VVGA.SYS
         to
           DEVICE=C:\OS2\MDOS\VSVGA.SYS

   o   Systems with Image Adapters running in
       dual-display modes will lose DOS window
       support after a DOS full-screen or OS/2
       full-screen session has been invoked.  The
       system must be restarted to reinstate the
       DOS window environment.  The problem can be
       avoided by turning off the dual display
       mode under the Image Adapter setup.


   S3 FUNCTIONAL RESTRICTIONS
   ---------------------------

         o  After Dark** for Windows** images that move from left to right do
            not perform properly at 640x480x16M resolution.

         o  To avoid a General Protection fault while loading Ventura
            Publisher** for Windows be sure it is in one of the 256 color
            resolutions.

         o  To avoid a trap in Lotus** 1-2-3** for OS/2 do not attempt to run
            the program at 16.7 million colors.

         o  WordPerfect** 5.1 and 5.2 for Windows produce a general protection
            fault when the "Print Preview" option is selected while using
            800x600x64K or 600x480x16 million color mode.

         o  Users of the software motion video feature of MMPM/2 should
            expect satisfactory results in 256-color modes.  However, in
            64K-color modes, users of the feature will experience unusual
            MMPMCS results.  The software motion video feature is not
            supported in 16 million color modes.

            In addition, the software motion video feature will take
            advantage of a 1MB aperture on video adapters and systems where it
            is available to improve the performance of video playback in
            64K-color modes.  For those systems with nonstandard locations,
            the actual physical address of the aperture must be provided in
            the following CONFIG.SYS statement:

               SET VIDEO_APERTURE=xxxh

            where "xxx" is a hexadecimal value in units of 1MB, representing
            the actual physical address to map to the aperture.  For example,
            the IBM PS/ValuePoint Systems must have the statement:

               SET VIDEO_APERTURE=400h

            to use a physical address at 1GB.

NEW SETVGA PROCEDURE
--------------------

Use the following procedure instead of the SETVGA command to return to
VGA mode.

        NOTE:  If your display is out of sync, start OS/2 using the OS/2
               Installation Diskette, insert Diskette 1 when prompted, then
               press Esc to access a command prompt.  Follow the instructions
               below to reset your display mode.

o  If you installed OS/2 from diskettes:

     1.  Be sure RSPDSPI.EXE is in the \OS2\INSTALL directory.  If it is, go
         to step 2.  If it is not, insert Installation Diskette 8 and unpack
         RSPDSPI.EXE with the following command:

         C:\OS2\UNPACK A:\INSTAID C: /N:RSPDSPI.EXE

             where:  A: is the drive containing Installation Diskette 8
                     C: is the drive where OS/2 2.1 is installed

     2.  Type C:; then press Enter
     3.  Type CD C:\OS2\INSTALL; then press Enter
     4.  Type RSPDSPI /PK:VGA /SK:NONE /S:A:\ /T:C:; then press Enter

             /T:C: where C: is the drive where OS/2 2.1 is installed
             /S:A: where A: is the diskette drive you use to install
                   OS/2

o  If you installed OS/2 from CD-ROM or a LAN:

     1.  Be sure RSPDSPI.EXE is in the \OS2\INSTALL directory.  If it is, go
         to step 2.  If it is not, unpack RSPDSPI.EXE with the following
         command:

         C:\OS2\UNPACK E:\DISK_8\INSTAID C: /N:RSPDSPI.EXE

             where:  C: is the drive where OS/2 2.1 is installed
                     E: is the CD-ROM or LAN drive

     2.  Type C:; then press Enter
     3.  Type CD C:\OS2\INSTALL; then press Enter
     4.  Type RSPDSPI /PK:VGA /SK:NONE /S:E:\OS2SE21\ /T:C:; then press Enter

             /T:C: where C: is the drive where OS/2 2.1 is installed
             /S:E: where E: is the CD-ROM or LAN drive


SVGA CONSIDERATIONS

   o   The Western Digital** 90C31 SVGA chip set
       will have video problems when Windows 2.x
       applications are run.

   o   If you are using a ZEOS** system with
       Speedstar** VGA, you must run the VMODE
       utility supplied with the system to
       configure the display during the display
       driver installation.

   o   Zenith Data Systems** with the Headland Technology
       chip set HT208 do not support high resolution modes
       even though you can successfully set these modes
       and install high resolution drivers.  If a
       high resolution mode is used, a white
       half-screen will be displayed.  To correct
       this problem, use DSPINSTL to install VGA.

   o   If you have a Sigma Legend** display
       adapter you might experience minor video
       corruption on the desktop when you switch
       between the desktop and DOS if they are
       running in different modes.  This can be
       corrected by using a DOS utility to set the
       DOS session to the same mode as the
       desktop.


XGA CONSIDERATIONS

   o   If an XGA-2 adapter is installed, and you
       have modified the default display type in
       the System Settings notebook (page 2),
       after you restart the system it will
       display the Workplace Shell* in one
       resolution and WIN-OS/2 in a different
       resolution.  To change the resolution for
       the Workplace Shell:
       1.  Open OS/2 System.
       2.  Open System Setup.
       3.  Open System.
       4.  Select a 640x480xn  resolution.
       5.  Shut down and restart the system.
       6.  Repeat steps 1 through 3.
       7.  Select the desired resolution.
       8.  Shut down and restart the system.

       The Workplace Shell and WIN-OS/2 will now
       be displayed in the same resolution.

   o   If you are using a dual-display system with
       XGA as the primary display and VGA as the
       secondary display, you might see some minor
       corruption when the XGA display is set to a
       resolution with 65536 colors.  This
       corruption will be on the display that does
       not have focus and will not interfere with
       the operation of the system.

   o   On dual-display configurations with XGA-2
       as the primary display and VGA as the
       secondary display, the DOS full-screen
       session might be corrupted if a Windows
       application is started in a window session.
       To recover from this situation, shutdown
       and restart the system.

   o   If you are using Dual Boot with an XGA-2
       adapter, you must modify the CONFIG.DOS
       file:
       1.  Edit the \OS2\SYSTEM\CONFIG.DOS file.
       2.  Locate the line
           DEVICE=C:\DOS\EMM386.EXE RAM 2048
           X=nnnn-nnnn
       3.  Change nnnn-nnnn to C000-CFFF.
       4.  Save and exit the file.

   o   On IBM P75 systems, there might be some
       corruption on the screen whenever several
       icons are selected and moved together.
       This corruption can be eliminated by
       clicking mouse button 2 to bring up the
       pop-up menu and then selecting Sort.

   o   An IBM P75 system with an external monitor
       attached might have only the 640x480x16
       resolution selection on the the System
       Settings Screen page.  If the external
       monitor is capable of displaying higher
       resolutions, use the P75 reference diskette
       to disable the built-in plasma display.

   o   If you are using an XGA system, the hash
       lines around the icons of open applications
       might change color unexpectedly.  This does
       not interfere with the operation of the
       system.

   o   If you are using an XGA system, extra lines
       might appear on the face of the OS/2 System
       Clock between the quarter (:15) and half
       (:30) hour.  These lines do not interfere
       with the operation of the clock.


8514 CONSIDERATIONS

   o   If you are using the 1MB version of an
       ATI** Graphics Ultra** Pro adapter, the VGA
       memory must be set to SHARED to work
       properly with the OS/2 8514 display driver.
       This might cause some DOS applications
       running in the background to corrupt the
       desktop.  To correct this problem, you must
       upgrade to the 2MB version of the Graphics
       Ultra Pro and set the VGA memory to 256K or
       greater.

       NOTE:  In the "OS/2 Installation Guide", it
       states that the ATI Graphics Ultra Pro must
       be configured to IBM DEFAULT for the
       640x480 display type.  This setting might
       be referred to as 60Hz rather than IBM
       DEFAULT.

   o   If you are using a system with an 8514
       adapter with Windows applications running
       in separate WIN-OS/2 window sessions,
       video corruption might occur in
       bit maps when clipping between applications.

   o   After you start a WIN-OS/2 window session,
       256-color bit maps might become discolored
       due to the sharing of the 256-color
       palette.  This should not affect the
       running of the applications.

   o   Selecting windows in Mathematica might not
       bring focus to the proper window.


AUDIO ADAPTERS

   o  Audio support in WIN-OS/2 and DOS sessions is
      dependent on installed drivers.  You should
      install the audio adapter driver that came with
      your audio adapter.  When installing audio
      support for WIN-OS/2, be sure to install both
      DOS and Windows device drivers.  Configure
      both drivers to use the same interrupt level and
      DMA channel.

   o   The following drivers are available with
       the Audio Capture and Playback Adapter
       (ACPA):
       -   ACPADD.SYS
       -   ACPADD2.SYS
       -   ACPAK12.SYS
       -   ACPA.DRV
       The latest updates are available on the IBM
       Bulletin Board Service.

   o   MMPM/2 installs ACPA support for OS/2 only,
       not WIN-OS/2 or DOS.

       There are two ways to get DOS ACPA support
       in DOS sessions:
       1.  Edit the CONFIG.SYS file.
       2.  Add DEVICE=C:\ACPAK12.SYS
       3.  Save and exit the CONFIG.SYS file.
       4.  Copy the ACPAK12.SYS file to the C:\
           directory.
       5.  Restart the system to activate the
           changes.

       Or
       1.  Point to the DOS full-screen or window
           object.
       2.  Click mouse button 2.
       3.  Select the arrow to the right of Open.
       4.  Select Settings.
       5.  Select the Session tab.
       6.  Select DOS Settings.
       7.  Select DOS_DEVICE.
       8.  Type C:\ACPAK12.SYS in the Value field.
       9.  Select Save.
       10. Double-click on the title-bar icon to
           close the notebook.
       11. Copy the ACPAK12.SYS file to the C:\
           directory.

       To install WIN-OS/2 ACPA support:
       1.  Access the Control Panel in WIN-OS/2
           Main.
       2.  Select Drivers.
       3.  Select Add.
       4.  Select Unlisted or Updated Drivers.
       5.  Select OK.
       6.  Insert the diskette containing the ACPA
           driver into drive A.
       7.  Type A:
       8.  Select OK.
       9.  When the Add Unlisted or Updated Driver screen
           is displayed, select the M-Audio sound driver.
       10. Select OK.
       11. When the IBM ACPA Driver Setup screen is displayed,
           select Proper Input Source.

               DEFAULT IS MIC NORMAL

           Select OK.
       12. Select Restart Now.
       13. Open WIN-OS/2 session.
       14. Select the Control Panel in WIN-OS/2 Main.
       15. Select MIDI Mapper.
       16. Select the down arrow for Name.
       17. Select Extended MIDI for ACPA.
       18. Select Edit.
       19. Select Yes.
       20. Select port name for all 16 SRC channels
           to be IBM M-Audio MIDI SYNTH.
       21. Select OK.
       22. Select Yes.
       23. Select Close.
       24. Close the WIN-OS/2 session.

   o   MMPM/2 installs Sound Blaster** support for
       OS/2 only, not WIN-OS/2 or DOS.

   o   To add WIN-OS/2 Sound Blaster support:
       1.  Install the DOS device driver following
           the instructions that came with the
           adapter.  Use a DOS session for
           the installation.
       2.  Install the Windows driver.

           NOTE:  Be sure to use the same I/O
           address, interrupt, and DMA settings
           used during install of the DOS drivers.

PRINTERS

   o   If you are using the HP** LaserJet**
       printer driver, some complex images might
       not print correctly when LaserJet
       performance options are enabled. If you
       experience incorrect output or degraded
       printer performance, return the performance
       options to the disabled state.  To change
       the performance options:
       1.  Point to the printer object.
       2.  Click mouse button 2.
       3.  Select the arrow to the right of Open.
       4.  Select Settings.
       5.  Select the Printer Drivers tab.
       6.  Select Job properties.
       7.  Change the performance options to their
           default settings.
       8.  Double-click on the title-bar icon to
           close the notebook.

   o   If you experience problems while
       printing bit maps from an application
       while using the PostScript printer
       driver, select the printer-specific
       format option on the Queue options page
       in the Settings notebook of your
       printer object.

   o   The OS/2 printer drivers on the OS/2 2.1
       printer driver diskettes are stored in a
       packed format that is not compatible with
       OS/2 1.3 or 2.0.  To install one of the
       OS/2 2.1 printer drivers on a system with
       OS/2 1.3 or 2.0 installed, you must first
       unpack the driver on a system that has OS/2
       2.1 installed.  You do not have to complete
       these steps to install a printer driver on
       a system that already has OS/2 2.1
       installed.

       NOTE:  Do not install the new 32-bit
       PostScript driver (PSCRIPT.DR_) that came
       with OS/2 2.1 on a system with OS/2 1.3 or
       2.0 installed.  It is not compatible with
       these versions of OS/2.  While testing is
       continuing, current compatibility
       information about tested systems is
       available through your dealer, Marketing
       Representative, CompuServe, IBM National
       Support Center Bulletin Board System (NSC
       BBS), and IBMLink*.

       To unpack a printer driver for use on a
       OS/2 1.3 or OS/2 2.0 system, complete the
       following steps on your system that has
       OS/2 2.1 installed.
       1.  Open an OS/2 command prompt.
       2.  Type:

             MD X:\DRIVER

           where X is a drive on your system.
       3.  Insert into drive A the OS/2 2.1
           printer driver diskette that contains
           the printer driver you want to install.
           The printer driver names end in a "_".

             Printer Driver:  Diskette #   Packed Name:
             IBM Null            1         IBMNULL.DR_
             HP LaserJet         1         LASERJET.DR_
             HP DeskJet**        1         HPDJPM.DR_
             IBM 52XX            1         IBM52XX.DR_
             Epson               1         EPSON.DR_
             Plotter Driver      1         PLOTTERS.DR_
             IBM 4019            2         IBM4019.DR_
             IBM 4076            2         IBMPCL3.DR_
             IBM 42XX            2         IBM42XX.DR_
             IBM 5201-2          2         IBM52012.DR_
             PaintJet**          2         SMGXPJET.DR_
             IBM 4039            3         IBMPCL5.DR_

        NOTE: In order to get the proper printer driver directory
              structure on systems with OS/2 1.3, IBMPCL3, IBMPCL5,
              HPDeskJet and PaintJet must be installed using the
              Printer Install option in the Print Manager.  Do not
              use the Control Panel to install these printer drivers.

       4.  Type:

             UNPACK A:\Packed name X:\DRIVER

           where X is a drive on your system.  For
           example, if you want to install the
           Epson printer driver, type :

             UNPACK A:\EPSON.DR_ X:\DRIVER

           The printer driver files are now
           unpacked in the X:\DRIVER directory.
       5.  Copy the driver files to a diskette and
           install them on your OS/2 1.3 or 2.0
           system.


SCANNERS

       If you have a Logitech hand scanner on an
       AT bus computer, run the scanner at the
       100, 200, or 300 DPI setting.


MAHJONGG GAME

   OS/2 2.1 includes a new tile-matching game
   called Mahjongg Solitaire.

   To install Mahjongg Solitaire from diskettes:

   1.  Insert Diskette 10 into drive A.
   2.  Open an OS/2 command prompt.
   3.  Type:

           UNPACK A:MAHJONGG drive:

       where drive is the drive letter of the
       partition OS/2 2.1 is installed on.

   4.  Press Enter.
   5.  Type:

           MAHINST

       and press Enter. Then, follow the
       instructions on the screen.

   To install Mahjongg Solitaire from CD:

   1.  Insert the CD into the CD drive.
   2.  Open an OS/2 command prompt.
   3.  Type:


           UNPACK cd\drive:\OS2SE21\DISK_11\MAHJONGG drive:

       where cddrive is the drive letter of the
       CDROM and drive is the drive letter of the
       partition OS/2 2.1 is installed on.

   4.  Press Enter.
   5.  Type:

           MAHINST

       and press Enter. Then, follow the
       instructions on the screen.


TRADEMARKS
__________

   The following terms, denoted by an asterisk (*)
   in this README, are trademarks or registered
   trademarks of the IBM Corporation in the United
   States or other countries:

     Audio Capture and Playback Adapter
     ------------------------------------------
     IBM
     ------------------------------------------
     IBMLINK
     ------------------------------------------
     LinkWay
     ------------------------------------------
     Micro Channel
     ------------------------------------------
     Multimedia Presentation Manager/2
     ------------------------------------------
     NetView
     ------------------------------------------
     OS/2
     ------------------------------------------
     Presentation Manager
     ------------------------------------------
     WIN-OS/2
     ------------------------------------------
     Workplace Shell
     ------------------------------------------
     XGA
     ------------------------------------------

   The following terms, denoted by a double
   asterisk (**) in this README, are trademarks of
   other companies as follows:

    Trademark:            Owner:
   --------------------------------------------------------------
    Action!               Expertelligence
   --------------------------------------------------------------
    ALR                   Advanced Logic Research, Inc.
   --------------------------------------------------------------
    AMI Pro               Lotus Development Corp.
   --------------------------------------------------------------
    Animation Works       Gold Disk Inc.
   --------------------------------------------------------------
    APM                   Astek International Ltd.
   --------------------------------------------------------------
    ATI                   ATI Technologies, Inc.
   --------------------------------------------------------------
    CompuServe            CompuServe Incorporated
   --------------------------------------------------------------
    CorelDraw             Corel Systems Corporation
   --------------------------------------------------------------
    DeScribe              Lenname Advanced Products
   --------------------------------------------------------------
    DeskJet               Hewlett-Packard Company
   --------------------------------------------------------------
    Dr. Watson            Empirical Tools and Technology
   --------------------------------------------------------------
    Epson                 Seiko Epson Kabushiki Kaisha
   --------------------------------------------------------------
    Facelift              Bitstream Inc.
   --------------------------------------------------------------
    FlexView              Advanced Logic Research, Inc.
   --------------------------------------------------------------
    FotoMan               Logitech International
   --------------------------------------------------------------
    FoxPro                Fox Software, Inc.
   --------------------------------------------------------------
    FrameMaker            Frame Technology, Inc.
   --------------------------------------------------------------
    Freelance Graphics    Lotus Development Corporation
   --------------------------------------------------------------
    Hollywood             Claris Corporation
   --------------------------------------------------------------
    HP                    Hewlett-Packard Company
   --------------------------------------------------------------
    IconAuthor            Aimtech Corporation
   --------------------------------------------------------------
    Intel                 Intel Corporation
   --------------------------------------------------------------
    LaserJet           Hewlett Packard
   --------------------------------------------------------------
    Legend                Sigma Designs Inc.
   --------------------------------------------------------------
    Logitech              Logitech, Inc.
   --------------------------------------------------------------
    Microsoft             Microsoft Corporation
   --------------------------------------------------------------
    MS-DOS                Microsoft Corporation
   --------------------------------------------------------------
    Nautilus              Softshell Systems
   --------------------------------------------------------------
    NCR                   NCR Corporation
   --------------------------------------------------------------
    NET                   NCR Corporation
   --------------------------------------------------------------
    NetWare               Novell, Inc.
   --------------------------------------------------------------
    Norton Desktop        Symantec Corp.
   --------------------------------------------------------------
    Novell                Novell, Inc.
   --------------------------------------------------------------
    Paint Brush           Microsoft Corporation
   --------------------------------------------------------------
    PaintJet              Hewlett-Packard Company
   --------------------------------------------------------------
    Panasonic             Matsushita Electric Industrial Co., Ltd.
   --------------------------------------------------------------
    PostScript            Adobe Systems Inc.
   --------------------------------------------------------------
    PowerPoint            Microsoft Corporation
   --------------------------------------------------------------
    SatisFAXtion          Intel Corporation
   --------------------------------------------------------------
    Sound Blaster         Creative Labs, Inc.
   --------------------------------------------------------------
    SpeedStar             Diamond Computer Systems, Inc.
   --------------------------------------------------------------
    ULTRA                 ATI Technologies Inc.
   --------------------------------------------------------------
    Western Digital       Western Digital Corporation
   --------------------------------------------------------------
    Windows               Microsoft Corporation
   --------------------------------------------------------------
    WindowWorks           Spinnaker Software Corporation
   --------------------------------------------------------------
    Wing Commander        Origins Systems, Inc.
   --------------------------------------------------------------
    WordPerfect           WordPerfect Corporation
   --------------------------------------------------------------
    Zenith Data Systems   Zenith Electronics Corporation
   --------------------------------------------------------------
    ZEOS                  ZEOS International Ltd.
   --------------------------------------------------------------

   IBM DISCLAIMS ALL WARRANTIES, WHETHER EXPRESSED
   OR IMPLIED, INCLUDING WITHOUT LIMITATION,
   WARRANTIES OF FITNESS AND MERCHANTABILITY WITH
   RESPECT TO THE INFORMATION IN THIS DOCUMENT.
   BY FURNISHING THIS DOCUMENT, IBM GRANTS NO
   LICENSES TO ANY RELATED PATENTS OR COPYRIGHTS.

   (c) Copyright IBM Corporation, 1992, 1994, all rights reserved.

