External Hard Drive Not Working with Windows XP

Hallo, I recently bought a WEstern Digital External Hardrive ( WD5000AAKS) Cavier Blue.

I got it working and everything before, and put files onto it.
I then moved it to another computer, it does not work...
It does not show up in my computer.
In device manager, it has a yellow backgrounded exclamation mark.
The device status is :
This device is not configured correctly. (Code 1)

To reinstall the drivers for this device, click Reinstall Driver.

Any help would be much appriciated ! ^^
Thankyou.

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