My husband's computer has been sending out emails with links to
foreign drug pharmacies, and places for Viagra, and other such junk.

The email is being sent to people on his own contact lists (which
included my email) under the cc: lists, showing everyones email. It
will have someone's name in the subject line. It shows its from him
his name & correct email, then it will typically have someone's name
in the subject line. Then in the email, it will contain a link to
whatever they are promoting.

We ran MacAffee and Spybot and couple of other programs but nothing
has come up on our scan. This must be a virus but how do we find it?

Rae