Drive Cleaner - When I use Firefox, everything is great. On my same machine, I was stuck using Internet Explorer for a little bit - and visited this site, and after visiting my second discussion board, I got the Drive Cleaner pop-up that others have talked about. Not sure if it will help Fencer, but the ad at the bottom of the page when the pop-up came up was for WeightWatchers.com.
So when others see the pop-up, what ad is up on the BrainKing site, since with so many complaining - and myself seeing it in person, I also believe it is something on the BrainKing site that is triggering this pop-up.