Hi, I am using Windows XP. All the sudden my CD/DVD drive is missing. There is no icon to click on to use the CD drive. I have searched all through my computer for some way to get it to operate. I can not even reload any software that originally came with it, because the drive doesn't function. The door will open but it will not read any cd. It was working just fine and then all of the sudden it is GONE! I went to the device manager and there is no longer a CD/DVD Drive listed. What do I do and what the heck happened? Thank you in advance. Signed, Frustrated.