Does anyone know the following
1) To load POI's onto an area that is stored on SD card does the card have to be in when uploading POI's?
2) When uploading POI's, do the new ones become resident alongside previous files or does the new POI files wipe out the original ones.
3) If files are the same but from a later date does the new file overwrite the older file
4) In essence, everytime I load POI's, do I have to load everyone I want this time around?