Quote Originally Posted by crab987 View Post
I've spent 3 hours today trying to get it working on 3790. No luck.
I've deleted all DB files. Restarted nuvi 3790 and no traffic trends. That's expected. During boot it created default files. Then I copied back North America file D315600.db and rebooted. Traffic trends v4.25 for NA showed in My Maps. Run Web Updater and it added 006D213000.db file. Then I copied back EU file D317400.db. Rebooted. And ... nothing. EU Traffic trends are not showing in My Maps.
Looks like you are using D317400.db file from CNE on CNNA maps. And D315600.db file from CNNA maps. You must use db files from the same maps CNE or CNNA.