I did some experamenting with this. I was playing a space game, and when I was facing the dark space, it went black, but when I was facing a bright star, It was okay. Usually when the screen goes black, it's only for a few seconds. During that time, the green light on the side of the monitor (on the on/off button) flickers and right before it goes back to normal, it turns yellow/orange.
Anyone knows what's wrong and how to fix it?