Thanks for your input everyone. I did a virus scan and Ad-aware, and nothing came up. I'm hoping Eric can fix this problem when he gets home- I'll show him what everyone said, too.

I'm hoping I don't have to change my email address, but if I do, I do I guess. I suppose I should use a different one for my students anyway because there are so many people on the list. I've gotten plenty of junk mail before, but I've never before been the sender!