Mulewife has been having fits with her BMW Zumo that came with her K12GT. She keeps getting an error message "can't unlock maps" on her Zumo. We're getting ready to go to Canada, and she's trying to upload some routes and the GPS keeps coming back with the above error message. All the maps are already downloaded, so it's frustrating when she gets this message. Anybody got any ideas as to this error message? I think I'll keep my 276C for a while longer.