I get an email. Almost instantly another email "arrives" with the same subject but containing the following text: --- begin quote Hello How are you doing recently? I would like to introduce you a very good company which i knew. Their website is www.ebakm.com They can offer you all kinds of electronical products which you need,like Laptops ,GPS ,TV LCD,Cell Phones,PS3,MP3/4,Watch etc........ Please take some time to have a check ,there must be something you 'd like to purchase . Hope you have a good mood in shopping from their company ! Best Regards!!! --- end quote I suspect it's a virus existing locally because the headers make no sense and SpamCop agrees that the header is incomplete/missing. Resident Avast has never complained and online scanning by both McCaffee and another found nothing. It's a mystery. Thanks for your help.