Basecamp allows you to view the Mapmania maps, trace routes, view routes taken.
Search by points of interest, addresses or cities
Maps that let you find points of interest (hotels, restaurants, auto services, entertainment, etc.)
Install Basecamp from Garmin Web
Download the map in exe file.
You can now use all maps installed in your Basecamp
Did you upgrade BaseCamp? There is a routing bug. BaseCamp 4.3.5 is the last version without the routing bug. I went back to it for that reason. If you upgraded uninstall BaseCamp and reinstall 4.3.5 or older. Here