Will not show transferd maps will show routes that have been sent to it base map showing

The base map will just give you major highways. You are missing the gmapprom.img file which supplies all city streets. The sum file is not used and is only a checksum file to insure that the basemap was downloaded without errors. The map file, depending on year can be anywhere from 1 to 2GB in size and too large to be sent by email. In addition, you will need an unlock code file to activate the map on your unit. More info can be found here:

http://www.sharc.net/gps_lost_map.htm

Make sure you have your Map selected in your settings..... go to Tools.... Settings.... Map.....on bottom of screen press Map Info.


Is there a check mark in City Navigator North American NT..........if not you must have one in there to chose that map or whatever map you are looking for

When you select your destination, before you select go there is an option for map at the bottom of the screen. That will show you the entire route.

sounds like you might not have the new map set selected

settings -> map -> map info (make sure the NT 2009 map is checked)

You may be in an area where there is not enough topography for the topo lines to show up. Pan tothe Smokey Mountains and see if they show up.

Which channel markers? There is a settings menu for map detail, put that on highest (press menu once or twice to get to the setup menu)

I was having the same problem and contacted Garmin support.

What I had done was turned off the Basemap that came with the unit. I only had the mapsource map street map on which I had purchased separately.

The technician basically said the unit needed the basemap to "locate itself". Somehow the basemap supports any maps you purchase separately. That seemed odd but once I turned the Basemap back on it calculated the routes and the error message went away.

If you have the Basemap off, try turning it on from the Map Setup - Information window.

Hope this helped.

If you don't have "Detailed Maps" for the area you are travelling in, it will not have adequate map detail to create routes that are not on major highways.

To remedy this, you will need to use another of GARMIN's products... I believe it's called Mapsource City Navigator, and will have to be purchased for the area you are concerned with. This PC software will then allow you to load additional Map Data onto an SD card, which will slip into the slot on the left side of the unit.

You can find out about it at their website www.garmin.com then look in Maps