The problem: I have an Etrex30x ver3.0. Up now I have always downloaded map tiles from garmin.openstreetmap.nl, installed them in Mapsource and used Mapsource to send the map to the Etrex. No problem. Recently I tried to get a current map from download.bbbike.org but the site provides only pre-compiled gmapsupp files that the etrex rejects with the message 'can't authenticate maps. contact . . .'
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