I have Vista Ultimate 64 and yeah, the latest nVidia drivers work fine. I disagree about the network security. All it does is make networks harder to set up, not more secure. You can't share folders that are on your Desktop, in your My Documents folder, or anything else that is in /users without sharing the entire Users folder, which I see more as a security risk than better security. I fixed this by making a C:/My Documents folder that I can share alone from everything else to put my music and videos in.