I am using external usb drives for backing up my SBS 2003 server. I keep the same drive connected for a week then swap it. When I connect the new drive, 1 out of 4 or 5 times it does not connect. I don't get an error message and it doesn't show up in disk management. The same drive will connect to other pcs. The only solution I have found is to reboot the server, then it always connects. I would prefer a more elegant solution.