I own a Garmin Zumo 550 - great piece of kit. A friend sent me a garmin route file on a link by email. I tried to open it but received the message that I need a program to open it. Its a gdb file whatever that is and then how do I upload it into my zumo.
In the end I loaded the route into my zumo manually. I switched the zumo off partway through the ride, however when I switched on again it wouldn't resume from my current location, the zumo wanted to take me back to the start point. Any help would be greatfully received. Steve.
