Uninstall your ATI software and drivers, then visit http://ati.amd.com/support/driver.html and download
and then install the new ATI Catalyst 8.5 Display Driver
for Windows Vista (released May 21, 2008).
Also, may sure your video card is seated firmly in the slot.
--
Carey Frisch
Microsoft MVP
Windows Desktop Experience -
Windows Vista Enthusiast
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