I have a Sapphire ATi Radeon 6850. My monitor is a DELL 2007w. OS is windows7.
The problem I am having is that my monitor suddenly turns off as if it isn't receiving a signal from the GPU. At first I thought it might be a graphic card problem so I stress tested it under furmark and the temperatures under load were perfectly normal. It is only the monitor that turns off, the PC itself keeps working normally. Windows doesn't show anything out of the ordinary in the event log. The only way to get things back to normal again is to turn off and turn the PC back on. A reset won't do, the PC resets but the monitor doesn't turn back on. This is a problem I've been having in the last few days and I've experienced it 3-4 times. It seems to be happening at random, not triggered by anything special.
How can I further diagnose this problem?