Quote Originally Posted by xhongmao0509 View Post
How can I overview the map in PC?
Once the Map is in your GPS connect GPS to PC run Basecamp and It should display in Basecamp after a while.
If It does not display you have to Change the MS bit in the .IMG file from 1 to 0 using Gmaptool.
Another better way to view on your PC is to download the Mapsource installation and Install Map in your PC.
It will then be Viewable in Mapsource and Basecamp and Mapinstall etc.