My TSST corp DVD+-RW TS-H553A has stopped opening, either by pressing the button on the front of the tower, or by using the right-clicked ‘eject’ command in MyComputer. It just started this today, and nothing has been done to it to cause this. I’ve had the computer for two years now. Any advice if I should try to salvage it/fix it somehow/just forget it and replace it with a newer drive?