I never said anything about crystal balls,you did.As far as the video drivers are concerned,they are the latest (Nvidia 191.07) same driver for win7 64 and vista 64.I have 2X GTX295 (quad sli) running on ASUS P6T7 WS Supercomputer mobo (built it 3 months prior with no issues with vista 64). I thought since this was a Microsoft forum, that maybe someone might be familiar with this issue,i guess i was wrong. BTW,It doesn't matter what video card or driver,(for this issue)refresh keeps jumping back to 59hz causing tearing and flicker,Ive only had this operating sys for 3 days now, so i will continue to try different methods.