I am a 60 year old grandmother and not very good with computers. my computer (Compaq EVo) is driving me crazy. I could be in the middle of doing something, (e-mail, inter net surfing, playing a game) and the monitor just goes black. I know the computer is still running becuase I can hear sounds from whatever I was doing. Sometimes I can just restart it, sometimes I have to leave it turned off for several hours. Does anyone have an idea of what is going on?