If you haven't already, Pastoral Meanderings is a blog worthy of your attention.
This morning I turned on my laptop and found a gazzilion pop ups that kept me from doing anything on it. I spent some time on my laptop defining and locating the spyware, malware, rogue whatever. After several attempts to remove it, I decided to reformat and do a fresh install of Windows XP. In the end the tech folks suggested this was the best solution for this particular threat. I had backed up everything of consequence and therefore this would be a time consuming but rather painless solution.