I've found that Garmin's BaseCamp software (for Mac) recognises the Navigon Maps + More. Now comes the difficult bit - downloading items of use from BaseCamp to the Maps + More and for it then to be recognised by the M + M. I can see the .gpx files have been added to a Garmin folder on the Navigon. And BaseCamp can show me the routes I've planned as being on the unit, but I haven't found a way of seeing them on the M + M itself.
Nick
Nick