I am having difficulty trying to use this unit to navigate to a point as I am used to doing on my older unit. With that older model you place curser on a desired destination, press "MARK" and begin navigating (I believe). Now with the 64s, if I try that it marks (waypoint) where I am standing instead and I'm having quite a time establishing the point I want as a destination to get guidance from the GPS to get there!! (Guess maybe I should be asking GARMIN) If I finally do get my point established and marked, then if I say navigate; I get a notice that there are no established routes available or some such garble and it's a dead end! (Feeling like this tool is really worth hundreds of $$"s) Anyone got the answer?