Did u check which driver is installed for your processor?
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also:
Normally gv3.sys errors are caused by the below listed reasons:
Affected by virus, spyware, malware or Trojan
Destroyed or broken gv3.sys in the system process
Excessive files of application in the system.
Corrupted or damaged registry entries
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You should first try to scan your comp with some antivirus programs together with Spyware destroyer (u have some good freeware options, like Avast), then try Registry repair toolkit or something similar.
I use Win Xp so I can't really give u some good advices for your system, but isn't there in Win 7 option to roll-back system when it was working fine?
Last edited by 8OJ4N; Jan 25, 2011 at 08:38 PM.
Reason: <24 hour edit/bump