I downloaded a Garmin country map to the SD-card in a GPSmap 62S. The map (including all details) works fine in the 62S, but when connected to the computer (Windows Vista) it is not presented in BaseCamp, only a popup window telling that The *.img file is there and "No map printing". It's a bit difficult to create a new track or route without the map!
Does anyone know how to get the map on-screen in BaseCamp?