My computer has recently decided to stop working. I can turn on the tower and the monitor to power it up and the tower does it's normal thing like it is working, the screen on the other hand stays blank. The light on the screen turns green when I first turn it on the computer acts like it is going to work then goes amber and stays that way. The video card was replaced by best buy some time last year. I have also tried another monitor on the same computer and still get the same results. Can anyone tell me what is going on I'm a photographer and have clients photos still on there that I can loose. Can someone please help?