I rode the Poor Student 200, following a track I'd uploaded to the Etrex. At the end of the event I turned the Etrex off, as you do.
Before last weekend, I uploaded a track for the Willy Warmer and set the Poor Student track not to show on the map. Before setting off on the Willy Warmer on Sunday, I reset trip data. About 120k into the ride I noticed that the Etrex seemed to think I'd ridden about 160k. On saving the logged track from Sunday and loading it into Bikehike, I find that the Etrex logged a straight line between the finish of the Poor Student and home, hence the extra distance on Sunday's track log.
I'd rather the Etrex didn't do that sort of thing. How can I stop it?
I've tried swearing, but that doesn't seem to work...