I'm not sure if there was a virus in a letter I got, but I think there might have been. When I got the letter, I deleted it as soon as I saw it, because I thought it was junk mail. I didn't even notice there was an attachment. The subject of the letter = junk mail to me. Later I noticed that ZoneAlarm had a MailSafe alert. I never noticed that before. I investigated. It seems that the letter had a link on it that called an exe file. Zone Alarm Pro renamed the file to .com. Not sure if it's possible, but it sounds as if that executable file would have executed if I had opened the letter and clicked on that link. Sneaky!