Try to rembmer - that problem was from the time your built your computer ?
Or when you installed something ?
try to remember ...
Try System Restore back to before that happened.
In edition - Check this address for more help -
http://support.microsoft.com/mats/ae..._working/en-us
Start - type this in Search Box -> CMD.exe find at top and RIGHT CLICK - RUN AS ADMIN
Enter this at the prompt - sfc /scannow
Also run CheckDisk so we can rule out corruption as much as possible.
Also update or re-install the latest video
drivers.
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Engineering Windows 7 Graphics Performance
http://blogs.msdn.com/b/e7/archive/2...formance.aspxz
How to Change the Visual Effects Settings in Windows 7 (in most cases its best to leave these alone)
Visual Effects Settings - Change
Hope this helps.