Acer aspire model 50... DVD drive dissapears... SOLVED. It's actually a manufacturing problem. The dvd metal case atually touches the the interior metal case of the laptop causing a shortcircuit. Solution: Remove The DVD drive from its place by removing the screw of the drive from the back of laptop and then pull the drive gently out from the laptop case. At the end of DVD case you can see the metalic extension, with a little hole. Cover that entire area with something, I used a sticker, but let that hole free, so you can put the screw back in once you put the DVD drive back in to the laptop case. That's it. If your DVD drive has no other defects, it should work. It's a common problem to all Acer Aspire 5 series (5100, 5101, 5020, etc etc).