Quadram VGA Cards and Video Display in Windows 3.1 (83442)
The information in this article applies to:
- Microsoft Windows 3.1
- Microsoft Windows 3.11
This article was previously published under Q83442 SUMMARY
The Quad VGA display driver does not have full functionality on some
VGA cards, such as the Quadram and Chips & Technologies cards, when
used with Microsoft Windows operating system version 3.1. You cannot
use the MS-DOS Prompt in a window. In addition, pressing ALT+TAB may
result in a corrupted display. Windows 3.0 behaves similarly with
these cards.
The VGA (Version 3.0) selection in the Display list box in Windows 3.1
Setup offers the most functionality for these video cards. To access
the Display list box, choose the Windows Setup icon, and choose Change
System Settings from the Options menu.
Occasionally, you need to run the following command from the MS-DOS
command prompt before starting and/or after running Windows 3.1:
MORE INFORMATION
The Quadram video card was developed around 1988. It uses the C&T 441
chipset. Quadram, ATI, and C&T sold display cards with this chipset.
The Quadram video card uses the VGA driver with its own virtual
display driver (VDD) VDDCT441.386. This driver also shipped with
Windows 3.0. It was kept in Windows 3.1, but a new modified VGA driver
was developed.
KBCategory: kbhw kbdisplay kb3rdparty
KBSubcategory: win31
| Modification Type: | Major | Last Reviewed: | 10/10/2003 |
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| Keywords: | KB83442 |
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