To me, the biggest drawback of OpenStreetMaps compared to Garmin's CIty navigator is the address lookup. On OSM, it gets me to the street (sometimes), but not the the specific address. Sometimes the address search gives a result that is miles away from the actual address. But if you are just navigating to favorites, POI's or geocaches with specific coordinates, the OSM works fine most of the time.
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From your screen shot, the 62s reported the map as being enabled - so it appears to me that the unit is recognizing it and the map is reported properly. So it is not a matter of it being locked. If you manually go to the map, and move the location to europe, does it zoom in on the details consistent with city navigator?
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