Hi, I need help for my friend, we already two days try to call technical support but no ansver, problem is with Dimension 5150, Windows XP, 3.0, computer was before 3 days turn off himself and after that not working. When we start computer it's have some strange noise like zzzzzzzz, zzzzzzzz and that stop but on monitor no picture and when I try to press any buton on monitor, I recived message " In power save press any keyboard button or move mouse " and thats it. When computer switched himself off we was play game so we need some help please. Thanks .