Well at least I learnt what a RIAM failure is or whatever its called.
Maybe I won't put any effort into working out how to turn it off.
Comes up on a pretty regular baises as well. Which gives me the unfortunate conclusion that the GPS isn't as accruate as people think quite alot of the time with out them knowing about it.
H'mm how about no lines on a chart (which is store behined the seat), plog and using radio aids and GPS for navigation
MJ