I have the latest BaseCamp software installed on my MacBook Pro and the latest system software installed on my nuvi 1390. The same map is installed on my computer and the 1390.
When I calculate a route using BaseCamp it usually looks like I would expect. However, when I calculate the route using the nuvi 1390 I find that while it gets to the desired destination it frequently takes a strange(!) path which differs from BaseCamp.
Why do the routes differ? :confused: