Does anyone know how long the "bread crumbs" stay in the unit's memory (I assume that the data is resident in the unit, not on the map DVD)? I've had the car for only 700 miles and frankly have not noticed whether a route I've taken before still has crumbs on it the next time I take it.

Thanks in advance...

Bill
2007 Magnetic Gray TCH/Nav/Ash Leather
2002 Blue BMW K1200RS
2000 Champagne BMW K1200LT