Mine originated by someone using Watchbuys (perhaps you have been alerted). Watchbuys said the virus will send erroneous email from one's PC. Seemed innocuous enough and I tried two anti-viruses. Perhaps it is fine now. But since then I have been receiving incomplete and strange messages with return email preceded by underscore. And some of these are from familiar email handles (and I only do WIS stuff on this isolated PC). Curiouser and curiouser.