    AST RESEARCH, INC.        TECHNICAL BULLETIN # 1560          08/27/96

    TITLE:  Bravo MS/LC and ATI Video

    SUMMARY

       The Bravo MS system may experience screen flicker when opening a
       DOS window.

       This issue affects the following systems: 501772, 501773, 501774,
       501775, 501776, 501777, 501778, 501784, 501814, 501815, 501816,
       501860, 501861, 501916, 501926, and 501950. See Software
       Bulletin # 0326.

       This issue also affects the following systems: 501749 and 501841.
       See Software Bulletin # 0327.

    ISSUE

       1. The user may experience a 0.5 second delay in video
          synchronization when switching between the GUI (Graphical User
          Interface) and a DOS window under OS/2.

       2. The monitor may experience excessive switching of video modes
          during boot up of Windows 95.

    BACKGROUND

       The ATI video BIOS 1.055, which is part of the system BIOS, has
       an excessive amount of delay when switching between video modes.

    ACTION

       Update the system BIOS to version 1.07 (AST part number
       905591-032) or later. File 05591032.EXE is available from one of
       AST's On-Line! services as follows:

             AST WWW Site: http://www.ast.com
             AST On-Line! BBS*: See IB0001.TXT
             CompuServe: GO: ASTFORUM
             Prodigy: Jump: astsupport

       * Refer to IB0001.TXT for a list of AST's international BBS
         numbers.

       To decompress this file, create a temporary directory on your
       hard drive, copy the downloaded file to that directory, and run
       the file.

    NOTES

       BIOS v1.07 incorporates ATI video BIOS v1.073.

    TAN 000732MC, 000200DO

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