CONDOMIZE your computer!!! I'm sorry but I can't help but think of the TROJAN MAN commercials when I read about TROJANS!!! I use Blacklight... I had a sneaky little buggr in my OS and I could not figure out how these trojans kept reappearing when I had physically disconnected my modem... Blacklight solved it. Took down the OS as well but I think it HAD to kill it... the taskmgr.exe had been "infiltrated" or "subverted" and AVAST kept finding them when they went off but could not determine the root of the evil... I burned BLACKLIGHT on to a CD from a buddys house...
Reinstalled XP Pro... good to go!
Reinstalled XP Pro... good to go!