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Topics - flashlight

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GPSr Units / Nuvi 750 can't display California Topo Map
« on: January 11, 2009, 01:48:29 PM »
I have a NUVI 750, and would like to use it hiking in the SF Bay Area, so I very carefully followed the instructions on http://www.gpsfiledepot.com/tutorials/how-to-load-maps-on-my-garmin-gps-unit/ and also http://www.gpsfiledepot.com/maps/view/28/ to download the California Topo map, and then using my USB connection, installed Bay Area selected maps on my Garmin Nuvi. 

Well, using TOOLS / SETTINGS / MAP / MAP INFO I can see TWO identical entries listed as "California TOPO' with the grid numbers I selected, in addtion to Garmin's "City Navigator North America NT 2009"  However, no matter what I select or fail to select, I cannot see anything that looks like a topo map.  If I select all of them, or the Garmin map, I get my normal "street" map view.  If I select only one of the Topo maps, I don't get any topo info, I simly get a stripped -down (no details) mostly blank view of my area, just showing Highway 101 and some nearby towns, and the Bay, .... no details of any sort.  I've installed a 4Gig SanDisk SDHC card, but on checking the card - there are no files on it.  What am I doing wrong?  Thanks!

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