It would seem that the winblows only based Sobig worm with the whole. ".pif re:details, etc" does indeed affect Macs. Someone I know, has microsoft entourage X and i just saw today that he had 9 emails in his outbox that all contained the mysterious Windoze only Sobig virus. However none of the emails were going to anyone he had ever emailed. Has anyone else seen this occur? that definitely puts the NIX on the "only windows is affected"