WD External Hard drive not recognized in my computer

I have a WD3200ME-01 product and two PCs (a notebook and a desktop) both running WinXP SP3.

The HD is working fine when connected to the notebook. But if I try to connect it to the desktop, a new hardware is detected and the process to install the new usb device fails.

So, I can say the HD and USB cable are ok. The problem is a incompatibility between the HD and the desktop windows configuration.

The biggest difference between that system and an ordinary windows installation is the internal HD using two partitions, but I can’t believe this is the problem. That system is using C and E as Internal HD partitions and D as the optical device.

The USB ports are working fine and the windows is ok.

I will try to use the WD HD with other systems.