Hi, I have a Dell 19" LCD Monitor, model No E193FPc. I have never had any problems with it until yesterday when it would not 'light' up. The power light shows up correctly and is green but the display was completely black. If I turn the power off on the screen and then back on again, the screen does 'light up' and displays perfectly, but only stays for about 1-2 seconds and then goes black again. Is this a lost cause, or is there something that can be done to get it working properly again?