My friend's son is a computer programmer. What he told her to do in case of viruses that pirate a person's address book is to create an invalid address that will always be the first address in your book. Mine !000 and the name connected to it is worm alert. This will supposedly stop the message from being sent because the first address is invalid. In any case, if you have a get a mailer daemon in your inbox for worm alert you KNOW that you have a virus and can take whatever steps are necessary to deal with it. I hope that this helps. Carol