28
Matrox M-Series – User Guide
2
Cause
You may be using Windows XP Service Pack 2.
1
Solution
Install Service Pack 3 for Windows XP. To obtain a Microsoft Service Pack, contact your
system vendor or see the Microsoft Web site (
Problem
Using multiple displays under Windows 7/Vista/XP program doesn’t
work with your Matrox product
1
Cause
Your main graphics card may not be controlling your primary display. The graphics card that
controls your primary display is the one that first displays information when you restart your
computer.
A program that doesn’t recognize multiple displays may not work with a graphics card unless
it’s controlling your primary display.
Your computer BIOS (Basic Input/Output System) and the slot type (PCI or PCIe –
“Choose an expansion slot”, page 8
) of each graphics card help determine which graphics
card controls your primary display.
1
Solution
If you’re having problems with a program that can be moved on your Windows desktop, run
this program on your primary display. Make sure the program window doesn’t overlap any
other display. If the program doesn’t work with the graphics card controlling your primary
display, or you want your main graphics card to control your primary display, see the other
solutions.
2
Solution
Windows XP and Windows Server 2003
– If you’re having problems with a program that
can’t be moved on your Windows desktop, try changing your primary display.
1
Right-click your Windows desktop background, then click
Properties
Æ
Settings
.
2
Select the display you want as the primary display and enable
Use this device as the
primary monitor
.
3
Click
OK
or
Apply
for your changes to take effect.
3
Solution
Change the configuration of your computer BIOS so that the slot type of your main graphics
card has priority for becoming the primary display. For information on how to change your
computer BIOS settings, see your system manual.
If your computer BIOS doesn’t let you select which slot type has priority for becoming the
primary display, a BIOS update may be available to let you do this. (The BIOS of most
computers can be updated with software.) For a possible BIOS update for your computer,
contact your system vendor.
4
Solution
If there’s a graphics controller built into the motherboard of your computer, by changing
your computer BIOS settings, you may be able to change which device controls your primary
display. For more information, see your system manual.
