Yesterday when I tried to swith the computer on, everything went normal, except the monitor was just black. I could hear the voices of computer starting however, and everytime I tried to switch the monitor on it said. "DVI No Signal" and "Monitor Going To sleep" then switched off. I tried to see if it works with VGA cable and it works somewhat, but I can't adjust the screen with it, not to mention, it seems that my (Crappy) NVidia GeForce 7500 LE Suddenly changed to NVidia GeForce 6150 LE. I don't know what's going on? Possibly the only way to get it work on a 7500 LE is to swith it to DVI, but it just doesn't work... Maybe it's broken?