User guide

22 Matrox Graphics Card – User Guide
Problem Screen image defects appear or program doesn’t run properly
(example: mouse pointer not drawn properly)
Cause
Some programs may not work properly with some Matrox acceleration.
Solution Disable specific types of software acceleration.
Windows 95/98 –
1 Access the Matrox PowerDesk Options property sheet (see “Accessing PowerDesk
property sheets”, page 8).
2 Clear one or more check boxes, starting with Use device bitmaps caching .
For more information, see context-sensitive help.
3 Click OK Æ Close to accept the changes. (Depending on the feature you disabled, you
may have to restart your computer for the changes to take effect.)
Windows NT 4.0 –
1 Click Æ Programs Æ Matrox PowerDesk NT Æ Matrox Display Properties Æ
Performance .
2 Clear one or more check boxes. For more information, see context-sensitive help.
3 Click OK Æ Yes to accept the changes. (Depending on the feature you disabled, you may
have to restart your computer for the changes to take effect.)
Solution If possible, update your Matrox display driver. Matrox makes new display drivers available
on the Matrox Web site (
www.matrox.com/mga ) and BBS (see page 42).
Solution Disable Matrox hardware acceleration.
Windows 95/98 –
1 Right-click the My Computer icon on the Windows desktop background.
2 Click Properties Æ Performance Æ Graphics .
3 Move the Hardware acceleration slider to None .
4 Click OK Æ Close Æ Yes to accept the changes and restart your computer.
Cause Windows 95/98 – There may be a conflict between resources in your system.
Solution 1 Right-click the My Computer icon on the Windows desktop background, then click
Properties Æ Device Manager .
2 Click the plus sign next to Other devices (if it appears) and Display adapters .
3 Delete any display adapter other than the one for your Matrox graphics card.
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