I just got an external enclosure for a hard drive I no longer have enough IDE controllers for. I have already used this hard drive for a long time so I know that it's working. I followed the instructions given by Azio (the manufacturer) exactly. My problem is that it shows up in device manager, but it is not a letter drive. In device manager it is under disk drives and it says the model of my drive and something like a2 USB. It says that the device is functioning, but it doesn't show up under anything except device manager. What do I need to do to get it working (I have some fairly important things on this hard drive). I have tried it on 2 different computers but they both have the same exact problem.