I have just noticed that Nav Traffic has started to work in my area. When I ask for Traffic information, the unit will display "Congestion" and will show how far the congestion is from my current location. Yet when you click the first congestion statement on the screen to get more information, the map shows the green lines, which according to the owner's manual, mean there is no congestion. When depressing the "Enter" key, the "voice" will say "traffic flowing smoothly". If that is the case, why is the system stating there is congestion? I've consulted the owner's manual, but I did not find an answer.