Does anyone else get these adverts? They're fucking annoying.

They happen at work and home every now and again but only when I view a MySpace Blog: suddenly you get the an OK/Cancel window popping up telling you you need to run winfixer and when you kill it it does a screen-filling pop up.

I find them irritating, moreso at home because they kill my original browser session for some reason. Am I the only person who's noticed them?