User guide

Matrox G450 MMS – User Guide 25
Problem 3D and video programs don’t work
1
Cause Your computer or program may not work well with bus mastering.
1
Solution Disable bus mastering:
(If you want to continue using bus mastering, see the other solutions.)
Windows 2000/XP –
1 Access the Matrox PowerDesk Options property sheet (see “Accessing PowerDesk
property sheets”, page 9).
2 Clear the Use bus mastering check box.
3 Click OK Æ OK Æ Yes to accept the changes.
Windows NT 4.0 –
1 Click Start Æ Settings Æ Control Panel Æ Matrox Display Properties Æ Performance .
2 Clear the Use bus mastering check box.
3 Click OK Æ Yes to accept the changes and restart your computer.
2
Cause Your Matrox card may be in a “slave” expansion slot on a computer that makes a distinction
between bus mastering and slave slots.
1
Solution Change slots – Shut down your computer, disconnect it from the power supply, remove your
Matrox card and then insert it into a different PCI expansion slot. For instructions on how
to safely install your Matrox card, see “Hardware installation”, page 3.
3
Cause Your computer may not have given an IRQ (interrupt request) to your Matrox graphics card
or may have given one used by another device in your computer. This may be because your
computer’s “Plug-and-Play” feature is turned off.
Windows 2000/XP – To check the display adapter’s IRQ:
1 Click Start Æ Settings * Æ Control Panel Æ Performance and Maintenance * Æ System
(double-click*)
Æ Hardware Æ Device Manager . (* Depending on your version and
configuration of Windows, this part of the step may not be necessary.)
2 Click the plus sign to the left of the Display adapters . An “ X ” through an icon means the
hardware has been disabled. A circled exclamation point through the icon means the
hardware has a problem.