your browser has probably been hijacked.gator and xupiter are probably the hardest to get rid of once they are on your system.do a file search for these 2.if you find them on your system do a search on google for these 3 free programs,"hijackthis","ad-aware",and "spybot".if you dl them make sure you dl the updates also.there are a few good forums re:getting rid of browser hijackers.