Not really sure what you could do with the monitor to try to fix it. Does anything rattle inside like something broke loose? If its not under manufacturer warranty anymore, you could open it up and look inside (unplug it first, obviously). See if anything looks burned-out or disconnected. Its possible your backlights burned-out or broke. They tend to be florescent tubes (like in overhead office lights or CFL bulbs). However, even if you see something that's broken, chances are its a lost cause.