Problems I'm having: Some kind of duplicate map issue, where by I need to use one of the duplicates for the usa and one for canada to see any detail. Alt clicking and draging a route seems to create random offshoot points along my route in places no where close to the part of the route dragged. The zumo xt seems not to want to calculate routes created with the map loaded on my computer. Sometimes the zumo xt gets stuck on one part of the route and stops giving updates( distances, turn direction etc).