Was your mate's message...
.....written in 97 pt type in red? Was the threat "validated" by Microsoft and Norton? Were you urged to pass the message on to EVERYONE in your address book NOW, immediately?
Usually the sign of a duff threat.
Several peeps used to pass these things on to me but not since (like you) I pointed them at snopes and Sophos. When one of them DID get a virus for real, I asked her if she'd a warning from MS and Norton and why hadn't she passed it on; I haven't heard from her for a while. OOps!
The Ancient Mariner