When you plug it in the USB port, do you hear the Windows XP "found device" noise? Does it say, "USB device not recognized"?
Does it have any buttons, on/off switch? My external WD drive has three front buttons, one is the on/off switch and two are some backup buttons. Nothing happens until I turn it on.
What brand is this?
Is there an activity light at alll on the hard drive, when does it flicker?
"To err is human - and to blame it on a computer is even more so." - Robert Orben