using garminroad trip i created a route and saved it. when i hook my c340 up to the computer via USB cable and click on the send tab i get this error message: The following items cannot be transferred: 1. Routes Either the GPS does not support the items or RoadTrip needs to be upgraded. Press OK to transfer the other items you selected (if any). i just downloaded road trip today so i believe it is the current version and would not need t be updated. can anyone give me an idea what i am doing wrong and why i can't transfer a route to the unit?