I had the RC running since it came out and everything worked perfectly. Now that I installed the offical Professional version I can not get Windows 7 to detect my Nvidia 8600M GT graphics card. When I bring up dxdiag it says Standard VGA Graphics Adapter, it does detect that it is a NVIDIA but not the apporx memor or monitor (which it used too). When I go to install the driver from the Nvidia website (where I got the driver for the RC, which worked) now says "The NVIDIA Setup program could not locate any drivers that are compatible with your current hardware. Setup will now exit"