@mdjorie

Method 3: To check which maps are installed on your MAC, check the contents of the following directory: home/Library/Aplication Support/Garmin/Maps, there you can just put or delete GMAPs "files", after restarting Roadtrip you shoud see results. You cannot have more that 1 map active that have the same FID.

Method 2: did you put the whole GMAP directory into that destination? THe whole GMAP directory should be copied there, after restarting Mapsource it should recognize it.

Alternativey, try the following: download the unlocked IMG file (links are ybove) and put it directly into you Nuvi