This is my first post on this site so please be gentile. Here is my situation. I read the first few pages of this thread and then started skimming through the 1000+postings to try to find answers to my problem.
2008 wing with navigation. All computer work is done with a Mac.
I was able to upgrade the firmware to 4.6 with no problems. Maps are City Navigator v8 but trying to upgrade to latest greatest. Purchased Full Coverage
Garmin City Navigator North America NT MicroSD / SD Card from Discount GPS Store for $59 (
http://www.d-gps.com/servlet/the-632...FQcEnQodDG6iWw). Thought I would download from the SD card to computer desktop and then put it on CF card to use in the wing.
The software did not come with an unlock code that I can find and I can't seem to get the maps unlocked online from Garmin (don't know how to do it I am missing something)
Tried making a duplicate copy of the old CF card (v

onto another 2 gig CF card but the wing will only take the maps from the old card. The backup (or new)
card only gets the message "cannot unlock maps"
Tried copying the new maps onto the old card but still get "cannot unlock maps"
Put the old maps (v

back on the old CF card and it works fine.
What am I doing wrong?
how do I unlock maps?
Help Please!!