Just to add to Tony's suggestions, have you tried using the Ethernet interface on the dock? I have always used that in the past.

I will take the unit off your hands for spares if you are going to chuck it out. My Karma is going to be used instead of my empeg in my car shortly (I want something I can hide in the car and not take with me so that's the iPhone ruled out )

Cheers

Cris.