It appears I was wrong. I had a feeling this would be the case, but a demo I installed for a program looks as though it was incredibly intrusive and was making everything...stupid. So after removing it, doing some registry fixing/hacking, and other assorted things, we're back to good. My apologies, SP4. You don't suck. Yet. And again, thanks to those of you who replied, and those who looked and dindn't know what to say. ;)