Hey Happy.
Did you happen to overclock your card using something like nTune by chance?
EDIT: See you tried several driver versions so skip that.
Tried disabling Aero? You can do it by just right clicking your desktop, personalize and choose a non aero basic windows theme.
Can you see your GPU temps when you are gaming? Is it running very hot or normal?
Last edited by W0ef; 05-05-2011 at 02:35 PM.
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