we got city select north america v6 few days ago. every time i tried to send map to our 60cs, a window pops out said "there was an error communicating with you device. please make sure ur device is pluged in and turned on." well, 60cs is pluged in and turned on, and i can still send waypoints from 60cs to pc. it is mapsource u use to transfer map to device instead of nroute, right? can anyone help me with the problem? thank you very much. we just started geocaching about a month ago, there are a lot we don't know yet.