I have a problem with my computer's DVD drive. It started to happen when my computer suddenly stalled about two weeks ago. I think the computer is alright now, but when I place a disc (CD or DVD) inside the drive, the light blinks for about five seconds, then stops. I keep waiting for an auto-play prompt like it did before, but none ever appears even after five minutes. What could be the problem? My computer could detect it, and the drivers are updated. Thanks in advance.