I'm having this problem with my monitor. It just keeps turning off out of nowhere and the power button doesn't work, it doesn't turn it on. It only turns back on randomly or after I've continuously pushed the power button. Also, the brightness/contrast adjustment buttons don't work for some reason, they just turn the monitor on and off. I'm guessing this is a problem with my graphics/video card drivers, but I don't know where to start to fix this problem. Would anyone be able to help me? Reps to anyone that can help!
What kind of computer is it? Every so often I have the same problem. I thought it happened when my computer got too hot so it would turn off as a safety feature.