catymag, i downloaded the thailand v.8.1 en+ unlock into my garmin 255W that i bought back from the U.S.A. i can see that the map is loaded in the unit on the map info menu but the map does not show up on the gps. is there anything i did not do. i also change the name to gmapsupp. have no problem with the malsing 's malaysia/singapore mapdoing it this way. please help. thanks