On Thu, Jul 28, 2016 at 12:36:03PM -0400, Greg Troxel wrote:

do you have pointers to older firmware, and can you roll back to 4.20?

Garmin seem to do their best to make it difficult to get their firmware images. Anyway, I seem to remember reading that it was not possible to roll back to older versions. But maybe my memory is wrong. But I don't want to risk bricking my Etrek. It is possible that I still have the older firmware somewhere.

I have an etrex 30 with 2.80, which basically works.

Yes, I am pretty sure I was on 2.80 before, and had no problems. I suppose a conspiracy theory would be that Garmin changed something to bread mkgmap, but I guess it is more likely that the reverse engineering of the map format is imperfect, and this new bug may be the opportunity to track down such imperfections. Which is why I thought the developers' list was the right place to post. If I can find the old firmware image, and am sure that reverting won't brick the unit, I will give it a try. I may also try some of the other maps suggested, although I am currently away from home with limited internet bandwidth, so large maps might be a problem ATM. Thanks for the suggestions. ael