I have a 76s that has decided not to handle the longitude correctly, at my latitude ~35°N the 76s bounces back and forth between the correct longitude and a point about 250-300 yards off. If I set waypoints with the navigation OFF, some will be located correctly and some will not. The same when I create a waypoint by holding down the "Enter" button. The last time I used it the GO TO function was pointing me to a location about 250-300 yard to the west of the point I had set by pressing and holding "Enter" earlier that day.. This last waypoint was at my truck and as I moved towards the truck the GPS was showing the distance to the way point as increasing, but as soon as I got close it indicated I was approaching the waypoint.
