Guest, Sounds like you've picked up something like a variant of the CoolWebSearch scumware. I got infected a couple months back (just by surfing) and used CWShredder, Spybot S&D and Ad-aware to remove it all and get things back to normal. It took all three utilities, which I'd recommend all (yeah, I know, except for you Mac people...) to download and update and use often. Things are getting dirty out there.