gafitanu

I just installed a MB navigation unit in my '05 C320. I coded it with DAS, everything works with one exception. When I start the car the the unit doesn't show directly the map. It goes into the navigation start menu with the new destination, POI and other menus. I have to press the map button again to make it show the map. Both my E500 and SL500 if the unit is on map when I turn the car off it will start on the map.
Anybody knows how to fix this?
Could it be that the map DVD is too old 2006?
Thanks