I need help... sometimes my monitor will just randomly turn off, and the computer is still on but the sounds from music and videos will sound garbled. The monitor has never done this, and this computer I just built from the ground up. Please if u can tell me what to do thanks. I also have updated everything, the video card wasn't overheating, same with the cpu, the temps were pretty low and I have disabled screensavers, power options for the display. I am using windows vista, and have gotten the latest updates as well.