USB scanner will not install

I have a customer who brought in his CanoScan LiDe 30 scanner. He reports that the scanner is not recognized. I tried hooking it up to my Win2000 machine (SP4). It detects the presence of a USB device but says that it’s an unknow device. It gives the error message ‘The installation failed because a function driver was not specified for this device instance’. I have tried using all of my four USB ports in the back. I have already installed the software and drivers from the cd. Even if I point the USB device to the folder with the drivers, nothing comes up. I have also tried plugging this into an XP laptop, and it also says it is an unknown device. I have also tried reinstalling my root usb hubs and controllers.