Picked up a trojan after visiting one of several quilting sites, including this Board. (I suspect but am not 100% sure - the culprit was Penny Helpern's site) - the trojan was 'mediash'? When I was there my popup blocker kept saying this site was trying to load activeX. I didn't allow but somehow it still came through. I am very careful about clicking on links and haven't had virus or trojan (only cookies) appear for years. (I haven't had this problem recur since i stopped visiting Penny's site).