I guess this whole spyware debate could end up as tit for tat, I just went to Dixon's site and got a popup for Dell and, about a minute after I'd taked the screenshot below, a Searchscout popunder for
Notebook Computer Deals. I guess if someone is showing popups over their site, its easy to see why they would think its far to use the same method in return. (assuming they know their site is being obscured)