A safer OS is a good plan (whether its OSX or Linux) but for those who can't change that (including me at work) web browsers and email clients from anyone except MS are a good plan. I use Mozilla for a browser and it's not bad for email either. Haven't tried Firefox yet.

I've read comment in the online news sites that AV vendors should be taking more interest in spyware and similar trojans, not just focusing on signature-matching of email borne viruses. I see that Sophos have branched out into spam filtering.

Anyway... another time recently on Mudcat someone posted a link to a cure for a particularly pernicious piece of popup-ware. It involved editing the registry and deleting certain files. It's woth Googling for solutions like that, bound to come up on an online forum sooner or later.

Anahata