Installation guide
Matrox Graphics Card – Installation Guide 25
Standard Monitor Types
Vesa 1024X768 @60Hz
). For more information on MGA
monitor selection, see online the MGA PowerDesk online guide.
4 Click
OK
to apply your selection and close the dialog box.
Problem: 3D program for Windows 95 or Windows NT 4.0
doesn’t start or stops running
(program uses bus mastering)
Cause – Your computer or program may not work well with bus mastering.
Solution – Disable bus mastering:
(If you want to continue using bus mastering, see the other solutions.)
Windows 95 –
1 Right-click the Windows desktop background, then click the
Properties
menu item
Settings
tab
PowerDesk
button
Performance
tab.
2 Clear the
Use Bus Mastering
check box.
3 Click
OK
OK
Yes
to accept the changes and restart your computer.
Windows NT 4.0 –
1 Right-click the Windows desktop background, then click the
MGA Display Properties
menu
item
Performance
tab.
2 Clear the
Use Bus Mastering
check box.
3 Click
OK
Yes
to accept the changes and restart your computer.
Cause – Your Matrox card may be in a “slave” expansion slot on a computer that makes a
distinction between bus mastering and slave slots.
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 6.
Cause – Your computer may have not given an interrupt request (IRQ) 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. To check the display adapter’s IRQ:
Windows 95 –
1 Right-click the
My Computer
icon on the Windows desktop background, then click the
Properties
menu item
Device Manager
tab.
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.