Fortunately I have a hardware firewall so unless I'm stupid enough to open a random attachment I should be fine (touch wood :P) I keep all my mails off my computer at yahoo so I don't have issues with attachements I can't remove. This isn't the first time I have noticed this apparent link. After a poser crash I usually end up with a message telling me norton's control centre is not responding, it can't just be a coincidence.