Downloaded & Installed Driver v314.07 WHQL yesterday for the GTX 560 Ti but the System kept crashing Upon entering Windows 7, so I went back to the v310.90 Driver. The System runs okay with that Driver but the Collatz Wu's keep getting Computation Errors after a few Minutes running time. They ran okay with the GTX 470 that was in the Box but I sold that Card yesterday & replaced it with the GTX 560 Ti ... Either the 560 Ti is bad or the Collatz Wu's don't like to run on it, I'm running the 560 Ti at it's stock speed & the fan on 70 which reads about 60c on load. It's running 2 Wu's at once, maybe that's the problem, I don't know ???