HI SuTTon.
Sounds like a virus....
Check your system using any of these programs (I reckon using all of them):
http://www.lavasoftusa.com/software/adaware/(free)
http://www.grisoft.com (good free AVG)
http://free.grisoft.com/doc/20/lng/us/tpl/v5 AVG Anti Spyware<< free 30 day trial -the best in my opinion)
http://www.ccleaner.com/download/(free)
http://www.safer-networking.org/en/mirrors/index.html Spybot - Search & Destroy (FREE)
You can also read here point 4 in the post of LOTR....:
http://www.gnutellaforums.com/showthread.php?t=41432
If you still cant clear it
go to one of the Free computer Help sites listed here, They really know what there doing. register and post in there
forum, They will instruct you to D/L & run software that can be trusted,
Not all sites are Genuine, These three are recommended by US & tekies.
http://forums.spywareinfo.com/index.php?showtopic=79038 http://www.castlecops.com/HijackThis.html http://www.bleepingcomputer.com/
If the site you choose gives you good help, Tell us it helps others.
Peace.