Somebody sent us the Klez virus. My work also sent a MailMarshal response to say that I had sent it the Klez virus. I guess someone with both my home and work E-mail addresses must have it. I deleted the infected e-mail without checking the headers to see who it was. Damn.
Used Symantec's Klez Removal Tool to check our computer and it says we don't have Klez. Good.