This morning, I was using my desktop and everything was running smoothly. All of a sudden, my monitor screen went black. I know that the desktop is running just fine and that there is indeed a problem with the monitor (since there are still sounds from windows). The monitor's built in speakers are working. However, the monitor is completely black. It does not show any "No Signal Input" messages (which usually show up when the computer is off but the monitor is on. I already checked the cables in the back and everything is connected properly? What could possibly be wrong with the monitor? It's an Atec NeoView Al181. It is several years old. Could someone please help me out with this problem? I would greatly appreciate constructive input. Let me know if you need more info.