Originally Posted by
cullenking
Zack has the 705 and has found the best way to avoid that is to use a GPX Track, and then follow the compass - when you have a turn approaching, the compass will point in the direction of the turn. You do however lose the turn-by-turn aspect, but you at least always know where to go.
I use gpx tracks created on third-party websites (BRT, RWGPS, GPSies, MMR, etc..) almost exclusively on a 705 (3.1 software) and it navigates them generating turn-by-turn instructions pretty well. The problem is it will occasionally take an off-road straight-line short cut between two arbitrary trackpoints skipping over lots of intervening on-road trackpoints for no apparent reason. It often even says, "Turn right(left) off-road" when it does this.
AFAIK, nobody has figured out the reason or a solution to this problem.