Quote Originally Posted by owikh84 View Post
I had GTX580 SLI issue with Win7 X64 SP1 (Slipstreamed)
Solved by reinstalling Win7 X64 without SP1, installed GPU driver, then SP1 pack. SLI is working again.
After reinstalling w7 64bit i installed newest gpu driver - the same problem. I try like You, but im affraid there is something wrong.