I have a customer with an IBM R40 laptop with Windows XP. The floppy drive pops out and can be replaced with a DVD/CDRW drive and should be recognized right away. He usually has the DVD/CDRW drive in the laptop but had to switch over to the floppy drive to do something quickly.
A CD was placed in the drive and it began to spin. In the control panel, the system settings didn't show the drive listed. Pressing FN+F4 to remove and install the drive didn't make it appear. Laptop was shut down and BIOS was brought up. It was not set to detect the drive so it was changed to the default settings. Laptop was restarted and still does not detect the DVD/CDRW drive.
The customer says this has happened before but ejecting and replacing the DVD/CDRW drive about three times makes it detect. Unfortunately, it's not working this time. Other than swapping the shell for another one, I have no idea what else to try.