I have a Seagate 1TB harddrive and yesterday it was so hot that the cable modem that sits on top quit working. After I let both cool off the modem worked fine and still does. I have never noticed this much heat from the drive before? And it will try to stop (spinning) and starts right back up. So for now I have the power unpluged from it. What do I need to do, or what may the problem be? It is about 1-1/2 - 2 years old.