you'll need virus scan, trojan hunter, and adaware professional.
Be sure you have the latest update patch for each program.
If your running windows XP go into control panel. system. and turn off system restore. then update.
Go into your systems TEMP folder under windows and delete everything in there.
Delete your temporary internet files and your IE cache (if you use IE)
Empty your recycle bin.
Shut your computer down and start it in safe mode by holding F8 on the bootup.
then run trojan hunter. (
www.trojanhunter.com)
Virus Scan. (norton or mcafee should work fine)
and finally AdaWare Pro.
Once all three of these programs have run through completely opt to delete any crap they come up with, when all is finished, reboot and problem should be solved.
Long and drawn out yes, but helpful hopefully. My sister had the same problem on her comp and the above fix worked. The majority of people who have trojan and virus softwared void its effectiveness by running it daily, but not running it in safe mode.
anything other than safe mode and something will usually get missed.
Hope this helps. If not I apologize and wish you luck.