310 doesn't have 'initialize' in the setup, only the EZstart, which I think is the same dog under a different name. I've downloaded the manual from Magellan and now I suspect the unit may not be working properly. The basis for this is after I select 'EZstart' and confirm elevation, time and date, the unit goes over to 'Demo' which is the next main menu option under Setup. According to the manual the unit should instead pop over to the Nav window.
Any 310 owners out there confirm my suspicions?