Hi
I have a edge 810 loaded with standard base map and city navigator
Maps on a micro sd card ,the detailed city maps are visible on the divce
But when I connect it to garmin basecamp program on my PC
I am un able to vew the detailed City maps that are on the sd card
,when I double click the folder with the sd card in it
I am presented with a message saying that the file is corrupt
and can not be opend
Can any one tell me if this is normal ,I have only just bought the
810 and don't know what is to be expected
Any help would be much appreciated