Hi, I have a 19" Metro LCD monitor which constantly shows a black screen when i after my computer finish starting up. The problem only occured in the recent months. When it happened i tried unplugging the power supply and replugging it, which fixed the problem. But my concern is, that this black out is occuring in more frequent intervals now. So can anyone suggest any problems that are related to this? I bought the monitor for onli 2yrs.