For the download and installation of new maps for LNM I followed the instructions "To install the maps, download and unzip the file, then copy and paste the folder data found inside it to the location where you have your copy of LNM installed. Say yes to overwrite, when asked. You'll find my maps in a drop-down list." I did so but when opening LNM these maps don't show in the LNM drop-down list????? Any advice. Thank you.