I have a Dell optiplex gx240 that my brother gave me for my son's room. I hooked it up and installed a wireless adaptor card. Everything worked great for a few days. then one night my son was playing on his favorite website, I told him to stop to do his homework. While I was helping him the screensaver came on and after about 30 minutes the computer went into sleep mode. I tried to wake it up so he could continue to play after his homework by clicking the mouse and hitting buttons on the key board.It would not respond at all. I shut it down and restarted. It loads and I see the Dell logo and the bar at the bottum fill, then black screen. I shut it down again and unplugged it, waited and tried again. Dell logo then nothing. I unplugged it and took out the battery, then put it back and tried to start again. same thing, Dell logo then black screen. I don't know what else to try.
Edited by smith555, 15 January 2010 - 03:21 PM.