Sounds liked your browser has been hi-jacked by adware or spyware.
You need to get Adware SE, Spybot and possibly MS Anti-Spyware (Its changed it name now) and get this rubbish off your system.
Just remember, whenever you download anything always, always check it out with your AV app and always run two or three anti-spyware apps at least once a week.
UK Bob |