Installed the Vista RC1 (32bit) last night. All seems fine although networking was a beeyotch to get set up for some reason (and some websites including google.com and any microsoft site can't be reached altho work fine from my XP64 install).
Anyway, the internet connection seems to work fine from within Media Center but it refuses to download anything to do with tv listings. Has anyone managed to get this to work? If so then I guess there's something still not right with my network setup...