i too am having this problem...did the device manager and it showed up on 'my computer' as being there but when i tried to use it, would not work and disappeard from 'my computer'. did the device manager again and also reloaded drivers but when the device manager completes, shows the drive with a yellow triangle (which is an error msg) and flashes off and no longer shows on my computer. looking for help on getting this cd drive back on line. thanks