only the give feedback, the GMapTool works and know i can use the map that i want, but until now i could not make the maps works in the garmin 255, could you give any idea how can i works with nuvi 255, i think i need to use mapsource to tranfer the map, but i don't know how to convert the .img file to the extension that mapsource reads, i've tried with GMapTool, spliting to mapsource format but did not work, any light to help ?