Sorry Joel I have never let the waypoints get that high. I either name the waypoint if I want to keep it or delete it when I'm done. You can reset the counter to 001 by editing the waypoint nbr to 001.
I finally overran the 500 waypoint limit.
The problem is when you download waypoints they are added to the ones already there.
The only way I know to delete them is one at a time.
Anybody know a better way?