I AM NEW TO GPS UNITS BUT I AM WANTING TO ADD MORE DETAILED MAP INFO TO MY NEW GARMIN GPSMAP 60C. I HAVE LOOKED AT "MAPSOURCE METROGUIDE" VERSION 5 BUT IT STATES THAT automatic route calculation works on the PC only NOT on the GPS itself. WHAT DOES THAT EXACTLY MEAN? LIKE I SAID, I AM NEW TO THIS GPS AND NOT FAMILIER IF automatic route calculation IS SOMETHING THAT I REALLY NEED TO WORRY ABOUT OR NEED BECAUSE GARMIN'S OTHER PROGRAM, WHICH IS GARMIN "CITY SELECT" VER.5 DOES OFFER AUTOMATIC ROUTE CALCULTION ON BOTH THE PC AND GPS. I JUST DON'T KNOW WHICH OF THE TWO PROGRAMS WOULD BE BETTER. PLEASE HELP
