I have BaseCamp v4.2.4 on my MacBook running OS X v10.7.5 connected to a Garmin Montana 650t. Everything is updated to the latest version as it can get. The preloaded 100K U.S. TOPO map will appear and display in BC but whenever I try to create a route using the routing tool it will only connect the points using roads on the base map that comes with BC (Global Map) instead of using the more detailed roads on the 100K map even when the currently displayed map is the 100K map. How do I get BC to use the 100K map displayed to plan routes?
It goes something like this:
