An Annoying Little Error-Message before Shut-Down...

To keep it brief...

Sometimes..(no..it doesn't happen every single time...) when I choose to Restart my PC, an error message will flash very quickly on my screen right before preparing to shut down. It appears very very briefly, and it is near impossible to actually read..

I THINK I read something about some .dll file..but im not too sure. Either way, its very annoying. The PC runs great otherwise..as far as I can tell. No spyware..No virus..and I keep it clean almost to the point of absurdity.

I recently installed XP Tools ..does --this-- have anything to do with it??

I'm hoping someone can give me a tip in the right direction.. below are my specs..

OS: Windows Professional SP2
CPU: Athlon 64 3400+ @ 2.2ghz
RAM: 1534 MB (PC2700)
Video: Radeon X550 w/ 256mb
Audio: Sound Blaster Audigy

If you need to know anything more..please..give a response. Thank you very much for your time.

~Shane~