This afternoon while checking the e-mail account I use here, at the server I found an e-mail from BigSister (or
plrgrimshaw@aol.com) which had a virus attached.
I was able to delete this on the server and no harm was done this time. As these viruses raid addressbooks there may be more sent out.
I have sent BigSister an e-mail warning that her machine has been infected, but felt I ought to warn others here about the situation