As stated in the title my monitor constantly refreshes itself which is really frustrating. I used HDMI, and when it started happening I went back to DVI but it did not help. What is happening is the screen will randomly go black for between 5 and 30 seconds, though sound will continue and I can click and hear that its still working. Then it'll come back and in the top left corner it'll show a message that says "DVI 1" and work fine. I have monitored my temps on the video card and at load it never goes over 50c. All my temps are good actually. My video card is an Asus 580 gtx. Can anyone help!?