I found this article on Microsoft support which explains my problem EXACTLY!!
But I hesitate to follow the "Resolution" instructions, because I am running XP and not Win 2000, which that support article was written for. I could not find a similar article written for XP.
Would someone PLEASE take a look at that article and let me know if that resolution would apply to XP. I don't want to screw up my CPU worse than it already is by going in a re-naming files.