can anybody give me some advice, please? I think I might have picked up some sort of virus or Trojan...everytime I go online four folders appear in my "internet explorer content" folder. If I delete them they reappear soon afterwards. They change their names from time to time, names for example "7kekzx1d" "Cpyzcd2z" "Feznclru"...etc. I have an up-to-date antivirus program and a firewall. I don't know much about computers, so can somebody tell me if these things have an innocent explanation, and if not how do I get rid of them permanently?...Thanks!