Recently loaded Parallels and Vista Ultimate. Some initial problems, such as my MBP 2.2/2/160 running very hot, although that seems to be better today. Interestingly this stopped after I reset memory allocated for Windows to 750 from 1025. However, several times when I have tried to quit Vista, the Shutting Down window spins on forever, and I end up having to close Parallels to get it to stop. Any ideas on this problem?