PRB: Video Card Causes GP Faults or Display Problems (95232)
The information in this article applies to:
- Microsoft Visual FoxPro for Windows 3.0
- Microsoft Visual FoxPro for Windows 5.0
- Microsoft Visual FoxPro for Windows 6.0
- Microsoft Visual FoxPro for Windows 7.0
- Microsoft FoxPro for Windows 2.5
- Microsoft FoxPro for Windows 2.5a
- Microsoft FoxPro for Windows 2.5b
- Microsoft FoxPro for Windows 2.6
- Microsoft FoxPro for Windows 2.6a
This article was previously published under Q95232 SYMPTOMS
A number of video cards do not work properly with FoxPro for Windows.
They may cause general protection (GP) faults or display problems.
CAUSE
FoxPro for Windows makes intensive use of screen input/output (I/O), which does not work well with some video cards. The following video cards have been identified as conflicting with FoxPro for Windows:
- AST Power Premium 486 with VGA motherboard
- ATI Ultra Graphics Pro (local bus)
- COMPAQ QVision
- Dell 486/20 with VGA on motherboard
- Diamond Stealth64 video driver
- Genoa 7900 MM card
- Hercules Dynamite Power VESA with ET 4000 chipset
- MACH32
- MATROX MGA video driver using 1024 x 768 resolution
- NEC 2A
- Oak VGA card with 640 x 480 x 256 colors for 286 or higher processor
- Orchid Fahrenheit 1280 card using Microsoft Windows version 3.1
- Speed Star 24x
- TIGA 1024 x 768 x 256 small fonts
- Trident 8900C
- Number 9 Reality 332 video card with Hawkeye driverNOTE: The video cards discussed here are manufactured by vendors
independent of Microsoft; we make no warranty, implied or otherwise,
regarding these products' performance or reliability.
RESOLUTION
To test the compatibility of the video card being used and FoxPro for
Windows, use one of the standard Windows drivers that ships with Windows,
for example, the VGA or Super VGA driver. If the problem no longer occurs
when you are using the standard Windows video driver, contact the vendor
for an updated version of the video driver or obtain the proper driver from
the Windows Driver Library (WDL). (See the MORE INFORMATION section for information on obtaining a WDL driver.)
STATUS
This behavior is by design.
MORE INFORMATION
The WDL drivers are available at no charge from the Microsoft Software
Library and the Internet. However, note that standard connect-time fees and
long-distance telephone charges, if any, still apply during
downloading. When you connect to any of these services, please read the
WDL.TXT file for downloading instructions and a complete list of devices
supported in the WDL.
If you do not have a modem, you can obtain an individual WDL driver on disk
by calling Microsoft Product Support at (425) 637-7098.
Other Bulletin Board Service (BBS) Numbers
The BBS number for Trident is (415) 691-1016.
| Modification Type: | Minor | Last Reviewed: | 2/11/2005 |
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| Keywords: | kb3rdparty kbprb KB95232 |
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