I got the nuvi 755t for christmas and have used it a couple of times and i noticed the the junction view and the 3d view hasn't worked yet am i doing some thing wrong or r there any setting i should do before i go on a trip or a long ride. For i live in BOSTON where there r a lot of buildings and jucntion signs and nothing has come up why? Please help for i wanna get all that i can use on my nuvi to enjoy all the features that the 755t suppose to have.:confused:
