Thanks, Karen, I did "restore" but unfortunately had already outsmarted myself. You see, when I perform my once-a-week computer maintenance I always delete all but the last restore date. Maybe I won't be doing that anymore!

I ran both virus softwares again and so far, looks like I have finally removed the bad guy. Part of the problem was that the programs are operating so slowly that it takes forever to do the virus scan. After the virus scans, I went to the Control Panel and deleted the paging files and then set that up again. Seems to have helped. I'm wondering if my last Micrsoft update added some program that is using too much memory.

So much for getting any work done today. Computer diagnositcs taking up all my time!
Thanks again, Karen.