You must have a short in the plug. Just exactly which plug are you refering to? On the computer? Do you have only one? If you have one that still works you might have to get a hub and only use it. Or ...

Clearly, something is broken. But is it hardware, software, the device or the computer? That’s going to take some experimentation. First, let’s get the obvious out of the way: Unplug the device, then ...

I have a couple of USB ports which are clearly getting power (they're charging devices), and are doing enough that my first-gen Nook enters "usb device" mode. However, devices aren't showing up in ...