Removable USB HDD failure

Recently I connected my USB Hitachi 40G removable Hard drive to another computer & it did not appear to be getting enough power from that USB port, so I disconnected it. When i tried to use it again at home, my computer would not bring up a volume or show it in My Computer. I cannot access it but it is there when I go to Safely Remove Hardware, but clicking on it does nothing.
I get the following error in it’s properties
USB Device at location 0
I am running windows xp & had not trouble before.