Method of operating a navigation system to report effects of updated portions of a geographic database

A method for operating a navigation system that executes a navigation application software program to provide a navigation-related feature is provided. The method comprises identifying that the navigation application software program uses both updated geographic data and un-updated geographic data from a geographic database associated with said navigation system. The un-updated geographic data has an associated date or version different from the updated geographic data. The method further comprises providing a report indicating that an inconsistency between the updated geographic data and the un-updated geographic data may exist. The method may further include identifying the inconsistency between the updated geographic data and the un-updated geographic data.