User guide

Matrox M-Series – User Guide 25
2
Solution Uninstall the WDDM driver and install XPDM (Windows XP Display Driver Model) display
drivers for all your graphics cards. Windows Vista supports multiple XPDM drivers running
at once.
3
Solution Disable or remove any graphics cards not supported by the driver you want to use.
Problem In multi-display mode, displays aren’t numbered consecutively
1
Cause If you have more than one graphics card in your computer, the
display numbering may not be consecutive for the displays of a
multiple-display card (for example, a DualHead supporting
card). Display numbering depends on the types of expansion slots used in your computer
(PCI, and PCIe) and the BIOS settings of your computer.
1
Solution Windows 2000/XP/Vista – Move the displays in Windows.
1 Windows 2000/XP – Right-click your Windows desktop background, then click
Properties Æ Settings .
Windows Vista – Right-click your Windows desktop background, then click
Personalize Æ Display Settings .
2 Select a display and move it according to the physical position of the monitor it’s
associated with.
3 Click OK .
Problem Screen image defects appear, program doesn’t run properly, or
Windows doesn’t work properly
(example: mouse pointer not drawn properly)
1
Cause Some programs may not work properly with some Matrox acceleration.
1
Solution Windows 2000/XP/Vista – Disable Windows effects:
Windows 2000 –
1 Right-click your Windows desktop background, then click Properties Æ Effects .
2 Disable one or more features under Visual effects .
3 Click OK Æ OK .
Note: In multi-display mode, you may have limited control over the arrangement of
your displays. For more information, see Matrox PowerDesk documentation.