I have a couple of problems, I am running 2 nvidia 460gtx in sli mode. One problem I have is that my outside edges in the sim will be black, but not all the time. If I click where I remember where the buttons are they still work, but I cant see them. Then when I enter a race I can see the dials but nothing else. I will then exit to the main screen and notice that sync has changed it self to software instead of gpu.