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Q111568: Video Display Problems with MS-DOS Prompt and Trident Card

Article: Q111568
Product(s): Microsoft Windows 3.x Retail Product
Version(s): WINDOWS:3.11
Operating System(s): 
Keyword(s): 
Last Modified: 30-SEP-1999

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The information in this article applies to:

- Microsoft Windows for Workgroups version 3.11 
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SYMPTOMS
========

If you use ALT+TAB to switch from, and then back to, an MS-DOS Prompt session
under Microsoft Windows for Workgroups, the characters may become garbled. If
you press ALT+ENTER to put the MS-DOS Prompt session in a window, the screen is
redrawn correctly.


CAUSE
=====

This problem occurs when you use the Windows for Workgroups 3.11 Super VGA video
driver with a Trident VGA card that has 1 megabyte of RAM.

This problem occurs with the following Windows for Workgroups video drivers:

- Super VGA (800x600, 16 colors)

- Super VGA (800x600, 256 colors, large fonts)

- Super VGA (800x600, 256 colors, small fonts)

WORKAROUND
==========

To work around this problem, use one of the following drivers:

- The Windows for Workgroups VGA or VGA (3.0) video display driver

- The Super VGA 256-color video driver (SVGA.EXE).

- An updated driver from Trident. As of February 27, 1994, the most recent
  drivers are available from the Trident bulletin board service are found in
  the compressed file WIN31B.ZIP.

STATUS
======

Microsoft has confirmed this to be a problem in Windows for Workgroups version
3.11. We are researching this problem and will post new information here in the
Microsoft Knowledge Base as it becomes available.

Additional query words: 3.11 messed up repeated deleted truncated

======================================================================
Keywords          :  
Technology        : kbAudDeveloper kbWFWSearch kbWFW311
Version           : WINDOWS:3.11

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