I think i've been resting on my laurels as i thought i was pretty well covered with norton antivirus, zonealarm free, spyware blaster, spyware guard, spybot, adaware, stinger, x-ray pc and hijack this :?
Are you using Firefox 1.5 Simon, i havent got my finger out and upgraded yet. Incidentally do you do a clean install or leave the old versions of firefox on your pc ??