routeplanner problem

[marzon]

could any one help m,e out ?
I''ve got wingps 5 pro, with routeplanner, however, when I tick new route, put in both start and end waypoint, I get a straight line instead of a planned route over waterways only.
since I don''t own an amphibic boat, this is somewhat inconveniant !

how does this routeplanning thing work ?

thanks for your help !

Martijn