I just had my friends pc working last night. I had to shut it down to put a new modem in it and add some ram. When I booted it back up the monitor started frizzing out and then looked like it was just static and then these little green squares started popping up and then they filled the screen. Looked just like a little green box with a little green smilie face in it all over the screen. Then the screen went blank and then nothing. The pc just sits there. Its running XP. I have adaware and AVG virus software and just scanned it before I shut it down and it was clean. So wtf? Can anybody help me?