Navigon takes me 250 miles out of my way!

Well it tried to. I was going camping in central Arkansas near Little Rock, leaving from Kansas City. Navigon gives a route through St. Louis and Memphis at a grand total of 671 miles. Google maps and even the Maps App pick a more direct route at 418 miles. I've tried all of the settings and it gets no better unless I set an interim stop along the route I want to take. Besides the routing I really like the app and use it all the time. Just wondering if anyone else gets crazy routing with Navigon. Later.