Hi, I added a patch that fixes problem with edgesplit that leads to crash. Maybe it could get into 2.45? Bug: http://projects.blender.org/tracker/?group_id=9&atid=125&func=detail&aid=6695 Patch: http://projects.blender.org/tracker/index.php?func=detail&aid=6987&group_id=9&atid=127 -- Riku Palomäki