Thread: Multiple maps on SD Card

Thanks for the advice Catymag, I done as you suggested which does show some maps but not others. The CityXplorer maps, US Borders and County overlay, Theme Park maps and some Topo maps fail to show, does this mean these have to be named gmapsupp.img to work? Or does it mean I need a .unl file to have it work? Please forgive my ignorance, I'm a total noob at this. :-S