I have the base Penryn MBP and experiencing stuttering audio in Windows XP...kind of like playing a scratched CD. Happens in games, mp3s and website/videos. Anyone had or heard of similar problems? I've seen one or two posts from people experiencing similar this on older MPBs and they solved it with new wireless drivers but the Penryns have a new wireless chipset (broadcom) and I'm having trouble finding newer drivers than the ones that came with bootcamp. Might call apple tomorrow see if they know anything about it. Cheers.