Last night I shut down my computer as usual, and I haven't installed any new hardware or software, or changed what's been plugged into my computer in over a month. But this morning, I went to turn on XP (on my Mac Pro, see signature) I get a bar, similar to the restoring Windows bar, at the bottom of the screen. Nothing else is on the screen, no text, or anything. Nothing appears before the bar. I tried the restore disk and bootfix, but to no avail. Any ideas what might be wrong? Mac boots fine, so I don't think it's memory or a hard drive.