Hi, So I bought a hard drive dock to speed up the back-up workflow. I just unpacked it and it inserted a Seagate HDD 2TB drive I bought along with it. When I insert it, the drive powers up, I hear it spin for 2-3 seconds and then it just powers off again. I can't see the disk anywhere on my Macbook (10.9). What's going on here? I hardly doubt the HDD dock is broken. There's a green 'power' LED on, as well as a blue LED that supposedly shows you there's a disk inserted. It just doesn't show anywhere on the laptop. Thanks in advance!