This is an ongoing problem with prior builds as well. When I tell XP to shut down, it does, but then it'll hang at the blue-screen part. Force-quitting Parallels is the only way out, and eventually the XP disk image becomes corrupt and the contents are lost. I have reloaded XP into a new disk image (.hdd) and eventually the problem comes back. I am running a MBP. This is becoming a serious problem. Any ideas?