There have been several threads on this here the past few days. Sounds like we all have this issue. My guess is the drivers are not available yet. I've been working with Apple tech support on this since Sunday and I have yet to have somebody from Apple tell me the drivers aren't available yet but the fact that we're all having this issue tells me they're not available and they just haven't told their 2nd level and below support yet. The 2nd tier guy who I talked to on Sunday called me back to run some further diagnostics this afternoon which I thought was a waste of time. Apple needs to come out and just tell everybody that Boot Camp isn't available yet.