I'm new to GPS, just bought a Zumo. Is there a means of getting the City Navigator software to distinguish between paved and unpaved roads? I have it set for one step below the mid-point on the "Prefer Minor Roads / Prefer Highways", this seems to help. Any lower on that scale and it seems to include unpaved roads quite happily, even though they are checked on the "Try To Avoid" list. I would be quite content if I could simply give them a different appearance on the maps, or note them if they were included in a route. Any help will be gratefully recieved!