The computer is sort of “communal property”. I use it my roommate uses it and so do people who visit. It’s hooked up to my Philips 47 inch and occasionally we go to OVGuide to look at movies. I’m thinking that one of the websites on OV was compromised and may have infected it. I clean out the computer on a regular basis with CCleaner and EasyClean, plus I get rid of all the %temp% files and scan it with SuperSpyware eliminator, Spybot, Spyware terminator and Defender. I have looked in the original box and had no motherboard CD. I will try that.