Internet Explorer and pop ups, why so?

Okay, so I know I have malware/adware/a virus, etc etc, except I can’t seem to target whatever it is.

I’m currently using Firefox and Chrome, but randomly when I switch pages, IE opens up and starts spamming me with ads and such.

I ran hijackthis and fixed anything that seemed odd.

Specific links are appreciated.

spysweeper and norton is good, try them.

Google Chrome addons New WOT Plugin