umm, i would be reconing that you have a virus. I was experimenting with a copy of "tukojan" once, and i installed it to one of my cruddy pc's. The funny thing is the cd drive kept on popping out every 15 secs lol. So yeah, i would personally stay away from free virus scanners as most of them arn't that great, if you can't afford to buy something like trend micro, then just use nod32 or avast's free versions.