Hi,
After the most recent update, I began to get an error message: "Route Calculation Error. Maps does not have routable roads in the area." This occurs whenever I am using navigation and it does not matter which route I choose. I checked to ensure that the profile being used has the appropriate maps enabled. My device is an Edge 830 and currently has software version 9.75 installed. The update was done on my Mac desktop using Garmin Express.
All the best,
John