How do I replace my CD/DVD RAM drive?

I was unable to find the repair manual on Acer's website, but saw your website had several fixes for other things except for what I need. How do I replace the CD/DVD drive in my Acer Aspire 5100 (Model BL51)?

I can eject a disc with a paperclip, but I suspect there is a loose cable on the drive or it needs replaced unless there is another way to load a different device driver if it is not hardware related.

Windows XP Media Center Edition has problems starting the device with the Windows built-in drivers for the CD/DVD RAM drive. I've tried to remove/uninstall the device in Device Manager with no success of different results. You cannot install drivers manually as it is a "plug n play" device.

Windows says "Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)

The drive is a Matshita DVD-RAM UJ-850S according to what Windows XP MCE detects.

Acer's website does not have any drivers for the device either. Please advise what I can do.

Thank you in advance.