Iv'e had this problem before but I've managed to fix it by unplugging the graphics card and plugging it back in. Basically I boot it up and it post beeps but the monitor does not come on at all. The standby light just stays orange where as usually it turns blue. I took the GPU out and plugged the HDMI cable into the mobo and it doesn't even get display that way. It came on for about 20 minutes yesterday but instead of the usual 1920x1080 resolution it was on something like 760x1020 or something like that. That was the highest it would go up to as well. Furthermore it didn't even recognize the monitor it just said something like HDMI output, although I cant quite remember. Can anyone tell me whats wrong and how I can fix this? Thanks.