This week, I worked on a PC for someone, and wow, was it infected with Malware/Spyware, bad stuff. Couldn’t stop it with Norton, MS Antispyware, other tools, etc. I found some forums saying to follow these 20 steps and it might work – forget it, just redo the PC.
That stuff is nasty, you need to watch what you install, especially from the web, stuff that pops up. I have seen that kind of stuff dissipate since XP sp2, but this computer didn’t have that, and must have gotten something that way.