OK, I just bought parallels the full version (not upgrade) deleted Parallels 4.0 from my applications folder, installed Parallels 5, I opened my Windows 7 virtual machine (from boot camp) which runs fine, my Windows Vista virtual machine which runs fine, but XP after the loading bars gets a BSOD. I've got backups in case anything goes wrong with the VMs. I wonder why this only happens for Windows XP? Safe Mode had the same problem. Any idea's what's wrong?