I don't want to disappoint you, but the first email trick doesn't work. Install a good anti-virus software, and let it scan incoming/outgoing email. Also run a complete scan of your system to verify you are clean. I got 2 emails within the last couple days that had the Klez virus attached. Norton 2002 caught it both times and it has been deleted.
Look under computer, then computer virus, for hoaxes. The email entry is different, but the theory is the same.