I just installed this today, I tried the vista x64
drivers as I'm on 64bit version and they failed with some weird error, so I downloaded the Windows 7 beta
drivers and they installed first time no issues.
One issue I did have that was annoying was my sound kept going up and down and all over the place on any heavy bits, like anything bassy was messed up on my music, I checked the settings and my sound was set to 7.1 as default, I changed this to stereo and it was all good :] Enjoying my music again lol.