dunno what you use for spyware and malware stuff, but an underestimated program is called Spywareblaster, look it up on Download.com. it acts as like a spyware firewall and prevents it from installing. so i use spywareblaster and spybot search and destroy, along with the free AVG anti-virus. and i have very few problems.
give em a try and i think youll like them!
Thanks but I actually have that installed. I have spybot, spywareblaster, superantispyware, rogueremover, and adaware. I also use AVG as my antivirus because Norton, McAfee and PC Cillin just blow in my opinion. I also use hijackthis and autoruns once I think I might be infected.
My problem is that my roommates always have people over and I'm sure some of them downloaded crap on it and that's how I must have been initially infected.