This build works beautifully for me . . . except that every time I start Parallels, I have to go through the OS Installation Assistant and recreate a VM before I can open my existing XP VM. If I click "Cancel" to get out of the Assistant, Parallels quits. It appears that even though my "Microsoft Windows XP.pvs" file is correct, Parallels does not know where to look for it. Is anyone else having this problem? I've found only one other report that appears to be related to mine, although I may not have entered the right parameters in my search.