Recently I ran into an issue with a WinXP box booting up. I kept getting "pci.sys" errors.and if, after cold booting a few times, I was lucky enough to get past that error, I would get the "ntfs.sys" error. Turns out I had a bad memory card. Dropping in a new card resolved ALL issues. Thought you might want to put this info some place on your website. (Unless it's already there and I just didn't see it!)