Settings FC when connecting bluetooth device

[rootbrain]

Have a strange thing happening on my new 32GB Nexus 7 (non-3G). I have it set up on 4.1.2, exactly the same as my 16GB Nexus 7, all the same apps (restored them to the new device with Titanium). Everytime I connect a bluetooth device, it will pair fine, but then I get "unfortunately settings has stopped" when trying to connect.

This has happened with 2 headsets and a keyboard that all work fine on the 16GB model. Does anyone know how I might go about checking the exact problem?

TIA