I try to work with the error display in the current survex Version. But it seems that the display of loop errors changed significantly. When I view an .30 file generated by therion Survex 1.2.27 has a much more helpful display then 1.2.42 See http://filez.foxel.org/e499b5a59fa8 Study of the release note didn't enlighten me what could have changed the Display. Any Hints? --max