I installed Service Pack 3 for XP this morning and now after the XP logo screen all I get is a black screen. The icons on the bottom of the Parallels window seem to indicate activity on the virtual hard drive and network port so I'm guessing something is up with how it's trying to display the video. A manual check of Parallels reported no updates waiting for it. The Mac is a G5 running the latest patch of Tiger. I'm running XP from an image file, not Boot Camp. What do I need to do?