SUCCESS!!!! I used ccleaner then I used display driver uninstaller in safe mode and it removed everything. I then downloaded the latest driver from Nvidia and lo and behold I now have the 960;s running. Thanks all for all the excellent help as usual. Even though I have gone through this experience before I never thought to use another program to sweep away the remnants of the drivers. Thanks again and now I wil be able to see what this thing is capable of doing.