Within the past week every time I turn my monitor off it will not render and image when I turn it back on. When I reboot it works fine, until I turn the monitor off again. I have a second monitor hooked up temporarily that does come back on, and I can see that the system still sees my primary monitor, but it won't render an image. The monitor acts like no signal is being sent to it. Any suggestion? I updated drivers, and the problem persists.