Sometimes when I come out of standby, my Pioneer 109 will keep opening and closing on its own, the only solution I found was to shut down the computer, wait 10 seconds, and then restart it, if I don't wait 10 seconds, the problem stays. When I put a DVD in the drive, while it's open, it will close and then start spinning but it is not actually reading it, and if I go to My Computer it doesn't see the DVD in the DVD drive. I ran a full virus scan and I did not find anything. I know that my DVD drive is an old one, it has like 5 years, and is IDE. I just hope that it is not my motherboard!