select Software Updates. To see if an update for your map software is available, go tohttp://www.garmin.com/unlock/update.jsp.Purchasing Additional MapSource MapsYou can purchase additional MapSource map data from Garmin and load the maps onyour nüvi’s internal memory or on an optional SD card. Follow the instructions thatcame with the new map data to properly install the maps to your computer and nüvi.In order to enable additional maps, you need your unit ID (see page 38) and serialnumber (see page i). To load maps to your nüvi memory or SD card, select the namefor your “nuvi” drive or SD card drive. Refer to the MapSource help file for moreinformation about using MapSource and loading maps on your Garmin GPS.Loading MapSource Waypoints on Your nüviUsing MapSource, you can save locations (also called waypoints) and transfer them toyour nüvi. For more information about creating waypoints in MapSource, see the helpfile (press F1 to open the help file).After you have created the waypoints, select File > Save. Select GPS eXchangeFormat (*.gpx) for the Save as Type. Click the Save button.With your nüvi connected to your computer, copy the *.gpx file into in the Garmin\Waypoints folder in the “nuvi” drive. The waypoints you created in MapSource arenow in My Locations > Favorites.New Nuvi 310,360 OM.indd 71 2/24/2006 5:06:36 PM