Help MEEEE!

ok so i was playing a game and ma game froze so i just figured that I'd restart my computer. Upon restarting it reached the windows xp load screen with the little blue bar going across the screen, then it went black. The black screen however had several little dots ALL OVER the screen, arranged in a pattern. I tried restarting several times and it did the same thing every time. I am now running my computer in safe mode, while i post this desperate cry for help. another thing to note, there are several lines going across the screen even in safe mode. I did a virus scan , nothing. I did a registry error scan, nothing. Any help will be greatly appreciated. There is a picture of my computer in safe mode (the lines) posted below.