I haven't been able to use my computer this week because I get that message (see thread title) before my OS, XP Media Center Edition (professional?) can load.
I've checked Google for possible causes of said error but none of the solutions were working. Usually the problem had to do with installing XP but of course I am not installing at all.
All I know is that it started when Dad put the computer on standby. Now, I distinctly remember this computer not having a standby function at all, so maybe that is something.