Changing language has no effect.

Symptoms : 
 In settings, when you use the pulldown picklist to select a language other than English, the UI does not update to reflect the new language. The selection indicates that you have successfully chosen a new language but nothing else changes. 
 
 Causes : 
 
 The language translation files are missing. 
 There was an issue with an earlier version of the installer software that placed the translation files in the incorrect location 
 
 
 Solution : 
 Contact your dealer. The latest version of the installation software needs to be run to correct the issue.