I've had an Essential Edition 500GB MyBook Drive for about a year. Today an alert came on my computer that I have new hardware via my USB Port. I didn't understand what it could be. However, when I click on the shortcut to get to the MyBook, it's not recognizing it. It is giving me an error that says: THE DRIVER OR NETWORK CONNECTION IS UNAVAILABLE. I unplugged the MyBook from the USB and plugged it back in and now it wants me to use an installation disc...however, this is a "Plug N Play" set up with these MyBooks. Now when I turn it off, the little USB light doesn't go off as it used to... ANyone have any clue what's going on here??