1530 miles later and no issues with the Nav5.. Took us from Calais to Baden Baden following the route I had wanted (France, Belgium, Luxembourg then Germany) which I reversed for the homeward trip
I assume you'd done this before you set off. I tried to find a function to reverse a route on the Nav V but couldn't.
Happen as well. Because when I do it in Basecamp it keeps the waypoints as they are, so if it's a dual carriage way most are on the wrong side of the road and bugger it all up. They need to me manual re-positioned.
This, by the way, is using a set route with pre-planned waypoints. Not a basic route mapped in Basecamp.