I could be wrong about this, but I had the same problem with Maya and a Quadro 3800. It looks like it's a DirectX problem. Even though there are Win7 drivers, the card does not support DirectX 11, only 10. I tried to delete dx11 from the regedit directory and then to install dx10 but that didn't work. Dxdiag tells me there is still 11 installed. My old school's lab has it working with the 3800, Win7 and dx10, don't know how they installed it though. The Quadro 4000 supports dx11 though and the price is about the same, so switching to that is my current solution.