Wrong Directions

When I first bought this app it was an excellent app. It seemed to get me going in the right direction pretty much all the time. Then all of a sudden it started taking me places one direction and returning me a totally different direction. And now it literally told me to get off the highway at an exit and then told me to get right back on the highway after getting off the exit it said to get off on. And unfortunately after paying $70 for the app Ive had to rely on other navigations to get to places that I need to go.

The Alm about NAVIGON North America, v2.15