It just started this morning. I rebooted this morning & the monitor went black & the normally green light was red indicating no signal,I guess. I ended up shutting it down via the power cord. Waited 30 seconds & it booted up fine. About an hour or so later, I rebooted again. This time the monitor flashed a white screen a couple times,but still had the green light. I once again used the power cord switch to shut it down. Waited 30 seconds & it booted up fine. I came in here to get help, hopefully its not dying.