Have had my AO5 drive for a couple of months. I have been using it exclusively for burning dvd's and it works great. However recently I tried to view a dvd in the drive and immediately upon inserting the disk into the drive my computer shut itself down and attempted to restart. It could not properly restart until I took the disk out of the drive. It continues to work perfectly when burning dvd's BUT if any sort of pre-recorded disk or a software disk is inserted it immediately shuts down the computer. I have tried to find a support number to call for help from Pioneer but to no avail. Could anyone please help or point me in the right direction to find help? I would greatly appreciate it!