I don't know what it is. The strange boxes on the right side of the screen. Take a screen shot of the screen, not a picture. and paste it somewhere, if you see the boxes, the problem is your Display Adapter, if you don't see the boxes, problem could be your monitor. if you don't know how to take screenshots. follow this: 1. press n hold shift then hit printscreen. (printscreen is the key next to scroll lock, 3 keys in keyboard after F12) 2. open microsoft windows 3. hit ctrl+v see what the screenshot looks like and the other site i'd say is - http://www.pcpitstop.com/pcpitstop/default.asp this site checks pc health from processors down to your VGA adapters and all. It might catch a problem, it might not. But whats harm in trying right? give it a shot. you don't have to be a member, just click on new users and then click on anonymous scan. it takes you through series of tests, no longer than 10 mins. let me know what comes up!