Hi, I am a newby. Having an issue trying to see the topograhpic (elevation grade) on my GPS. I have tried zooming in and out. I bought the 24K topo on a DVD and copied it to a SD card. The SD card is now in the GPS and no topographical view. The GPS does reconize the 24K topo on the SD and it is enabled. I can get the shaded function to work. Any help please?
Montana 650T
100K topo
24K topo
City Nav
