Sounds like you have some malware. Try doing an antivirus scan first. Free antivirus: [http://www.avast.com/eng/programs.html] [http://www.avira.com/en/download/index.html ] Malware program recommendations: Malwarebytes' Anti-Malware - [http://www.malwarebytes.org/mbam.php] SuperAntispyware - [http://www.superantispyware.com/] AdAware - [http://www.lavasoftusa.com/software/adaware/] Spybot Search & Destroy - [http://www.safer-networking.org/en/index.html] If these don't find it or can't clear it, post in one of these forums for specialized malware removal help: [http://www.spywarewarrior.com/index.php] [http://forum.aumha.org/] [http://www.spywareinfoforum.com/ ]