I'm with Bitt on this one. Sounds like bits of the wiring loom at the back of the docking sled have pulled out and are dangling and touching things they shouldn't. This happened with a certain batch of looms, they didn't get crimped properly.

If this is the case, contact support and they can send you a new wiring loom. You could also solder the connections yourself if you were so inclined.

If it's not the loom, then contact support anyway and see what David tells you.