Has anyone with a NAV noticed that when you change the North Pointer in the upper right corner to display the pointer that moves according to which direction you're heading, and the vehicle position icon is always pointing up (so that the vehicle position icon is stationary, and the map moves), that the pointer in the corner points right when travelling west, and left when travelling east? It seems logical that it would work like a compass and point right when you are heading east, and left when you are heading west because when travelling north, the pointer is up, and when travelling south, the pointer is down. Could this be a calibration error? I went into the hidden menus, but didn't find anything that seemed like it would change this. It's not really a problem because you always know where you are and what direction you're headed in with the NAV, but I just find it curious. Any ideas?