Why would you use this crippled file in HomePort when you have the original larger file for that purpose?
Check the MS flag (MapSource flag) and set that to 0. Look in the tutorial section for GMapTool or in the partial quote below.

Quote Originally Posted by catymag View Post
Garmin tutorials & tips Index



Using GMapTool

[Only registered and activated users can see links. ] post n°2
What is the BC g2 chart you are messing with and what area are you trying to extract?