Hi Adding a bit of detail to a survey I gained this error
http://mulucaves.org/Crash.jpg I am on win2000 using the 20060511 build Therion will compile other files, but Up_and_Running and Whiterock2003 it cannot (possibly others), but I do not know where to start looking for an error. I am reasonably sure I have not edited Up_and_Running since it successfully compiled in version 0.3.10 possible an earlier version. They do compile when part of the whole cave, Whiterock_only.th Data set available at http://mulucaves.org/Whiterock.zip thanks Andrew
