My external HD will not show up anywhere on the computer. I took it out of the case and installed as a second HD on another computer, it works fine. The USB is working, I've plugged other things in. The services.mcs, I have set logicals to automatic. It doesn't show under device mgmt or my computer. I thought maybe ext case was bad and bought a new one. I have used several different USB cables. I keep getting the balloon, new hardware found, problem with installation. Does anyone have any other ideas?