Montana 700i Doesn't follow route

Is anyone else having issues with their Montana not following the waypoints on a route?  I just got back from a 1200 mile trip, split into two routes with approximately 6 waypoints within each route.  When I would visit a waypoint, the Montana would then calculate directly to the end point of the route.  I then had to stop navigation, and reselect the route to continue.  It's a pretty frustrating behavior.

And it's still shutting down randomly....

I posted to the product support page.  we'll see if anything comes of it.