Thanks again Boyd. I got the maps downloaded and loaded on my new Garmin 64. Unfortunately I can't figure out how to display the one I want. My Gps screen will only show my pre-installed worldwide base map. I followed the instructions entitled "How to change which map is displayed on a Garmin GPS". The 64 was identical to the first set on instructions on the tutorial. However, when I enabled my desired map & disabled my pre-installed map, no map was displayed on the GPS screen. How do I get my new Trail map to display?