Didgery - 6:34 pm on Apr 30, 2005 (gmt 0) I've appreciated your advice. Thanks!
Well, I've tried most of the suggestions given - thanks, everyone! I haven't yet tried the drastic step of reinstalling Windows XP, because somehow when we moved across the country recently the disk vanished! I DID try the system restore feature, and that was unsuccessful.
At least there's less adware on my system now, even if it's not entirely gone!
I've appreciated your advice. Thanks!