They had connected the drive to USB 1.1 ports and the USB case only worked fully on USB 2.0 ports.
Another forum member had moved a drive with data into the USB case and the contents vanished. Put it back in a PC and there it was again. Lesson? You must prepare said drive in the USB case. Use the DISK MANAGEMENT TOOL.
I am running XP Pro sp2. I have tried to install an external usb drive. The system seems to install it fine, the Device Manager sees it and says that it is working. It shows up when I click "Safely Remove Hardware". When I try to use it or find it in Windows Explorer or "Administrative Tools" it isn't there. I also tried to find it with "Partition Magic" 8.0, no luck.