Since I just updated Docker to 1.1.0 I get:
Error response from daemon: client and server don\'t have same version (client : 1.13, server: 1.12) <
Error response from daemon: client and server don\'t have same version (client : 1.13, server: 1.12)
My solution was to do a Close > Power Off on the docker VM in VirtualBox, and then restart Kitematic. This fixed it for me.