pah, spybot search and destroy with the built in thing for IE/ firefox stops most viruses/trojans, and wipes them out if i do get one (or tells me how to do it if it cant). its actually been...(counts) 8 months since i got infected with a virus of any sort for more than an hour, and i destroyed that one manually using SB S&D's instructions.
Giveaway of the day's virus scanners can also be good. I kept A-Squared anti-malware, and that (coupled with SB S&D) is why im virus free.
so when its fixed and you read this, get rid of whatever your using right now (im guessing norton or macaffee, as most people use those pieces of Shack) and get Spybot, and if your dad is willing and you cant wait for A-Squared to come back round on GAOTD, buy A-Squared.
s-t-n
PS i remember prototype saying AVG anti-virus was good as well, but i dont know if it will conflict with the anti-virus' i said.