    AST RESEARCH, INC.         TECHNICAL BULLETIN # 1498          6-6-96

    TITLE: Ascentia 950N and P, Win 3.11, AutoCAD

    SUMMARY

       The Ascentia 950N and the Ascentia P systems display AutoCAD
       drawings properly on the screen, but printing to a non-Postscript
       printer causes the printed output to become corrupted.

       This issue affects all Ascentia 950N and Ascentia P systems.

    ISSUE

       When running Windows 3.11, using the Cirrus Logic 7543 (CL-GD7543)
       video drivers supplied by AST, the Ascentia 950N and the Ascentia P
       will only print AutoCAD drawings in Postscript mode.

       If a non-Postscript driver is selected, the output will be corrupted.

    BACKGROUND

       An incompatibility exists in Windows 3.1x with the Cirrus Logic
       video drivers, when using a non-Postscript printer driver in
       AutoCAD.

    ACTION

       Upgrade to Windows 95.  Cirrus Logic and Microsoft have included
       AutoCAD support for drivers that ship with Windows 95.

    NOTES

       Using the improper drivers may cause damage to the LCD display panel.
       For further information on using video drivers other than those
       specifically designed for the CL-GD7543 chipset, see 1280TB.TXT on
       AST's On-Line! services.

       You can download this file from the following services:

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

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

    TAN 001216GW

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