firefox gets redirected to random pages

[ceez]

hey guys. I have an issue which would seem like a virus/spyware/trojan, etc... but yet my pc comes up clean.

I use panda cloud av and superantispyware. I've also scanned with malwarebytes and trendmicro housecall. They all come back clean.

Yet when I click on search result links I will get redirected to some other sites. ie: yellow pages or some other search result page....nothing that looks dangerous but annoying. if i try to browse back using the arrow or alt-left arrow it will get stuck on the page. I have to browse back using the recent pages option. and this doesnt happen on EVERY click but when it does it gets annoying and it obviously should happen. I also use the host file from mvps.org

as the subject reads, I am using the latest ff3.6

thanks!

ceez