Hi, I've got a garmin 800 and when I follow a route I've put into it it will normally follow it fine, but, if I go off course due to closed Road or whatever it will keep trying to take me back to the point I left the course! even if I'm turning back into the finish it will tell me to turn round! ! It also gets confused if I use the same bit of road on the outward and return leg. Please help as otherwise I love my garmin