Parallels Desktop 5.0 has worked well, generally, till today. Parallels Tools refuses to load properly, and I made the BIG mistake of toggling the "Mac Look" button on the menu. Bad move; now all I can see is "Mac Look," regardless of whether I boot Vista in Parallels or in Boot Camp. I NEED SOME SUPPORT HERE TO GET THE PROBLEMS FIXED THAT YOUR PROGRAM HAS CAUSED ME!!!!!
I suggest you uninstall Parallels Tools (in Windows: do a proper softare uninstall via the Windows control panel), restart, and then install them again.