It says: The 3790T allows you to add multiple via points from Where To?, without going into the Trip Planner, but there is no route optimization option if you do it this way. Alternatively, you can select Tools > Trip Planner to create a route. Once a route is created with a beginning, end and at least two via points, you can access the Menu for the options You can't use MapSource for this unit. Bob Date: Sat, 12 Feb 2011 17:13:30 -0800 From: mrogers07@xxxxxxxxxxxxx Subject: [GeoStL] Nuvi 3790T help, please! To: geocaching@xxxxxxxxxxxxx Hey all... My parents just gave me a brand-new Nuvi 3790T and I was wondering how I could get routes on it? I have a Nuvi 760 as well and putting routes from Streets and Trips on it is easy. However, I can't for the life of me figure out how to do it on the 3790T. Can anyone help? Thanks! -Michael