just a long shot..and not sure what you have checked already.
1. This USB drive is usb2.0 correct? Make sure the xp machine is not 1.1 only
2. check WD for drivers...believe it or not some usb2 drivers can be different. I have an external that didn't work with the regular windows drivers but did after installing their usb2.0 driver.
3. google it. I returned a drive last month which was giving me trouble. I checked online and everyone was having an issue...no wonder I got a 350gb for 60 canadian which is like 0.12 american
4. Have a router? Plug external into the win2000 machine, network them and map a network drive on your xp machine.
5. Return the dam thing and make sure to get one with installer. I'm fed up with these BS windows "plug and play" peripherals because so many of them just don't work. Install disc works 99% of the time.
good luck
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