Try running Adaware click here and be sure to download the latest update or reference file.

Perform an online virus scan at Trend Micro's Housecall click here. Remove all it finds.

reboot

Download, install and UPDATE Spybot Search and Destroy. Scan and fix all items maked in RED. click here

reboot

Download HijackThis here. Make sure you install HijackThis to a permanent folder such as C:\HJT as it creates backups. Run the program, press Scan, press Save log. Notepad will open, copy and paste the entire log into your post.