Hey! You're a Squire!, when you get comfortable you might like to try the x32f build in Beta testing.

Jason

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I found on my BFG GTX 260 any overclock on the memory over 1200 would
give an "Display driver stopped responding and has successfully recovered".
Whats your memory set at.

Are you getting a driver crash sometime in the night? Mine did that until I put a rubber spacer between my cards to let more air in.