Hello everyone - I am trying to get Therion to work on a laptop. As far as I can tell, it is configured exactly the same as my desktop computer where Therion works just fine. Both systems are on the same version of Therion. Both are 64-bit Fedora 20. Both have the same set Texlive, Metapost and font packages. Therion.ini is identical. From a command prompt "mpost --version" produces the same output. I have checked file system permissions, and they all are the same. Any clues? What else should I look at? Thanks - Bill Gee ========== Therion.log file ========== therion 5.3.13 initialization file: /usr/local/etc/therion.ini reading ... done configuration file: thconfig reading ... done reading source files ... done preprocessing database ... done scanning centreline tree ... done searching for centerline loops ... done calculating station coordinates ... done calculating basic statistics ... done processing extended elevation ... done processing references ... done selecting export objects ... done processing projection plan ... done average distortion: 3.55% writing AllieSpringCave.pdf ... ####################### metapost log file ######################## therion: warning -- can't open data.log file for input can't open data.log file for input#################### end of metapost log file #################### therion: error -- metapost exit code -- 256 writing xtherion file ... done ============ Output from therion --print-environment -------------- therion 5.3.13 sh: cavern: command not found initialization file: /usr/local/etc/therion.ini reading ... done configuration file: thconfig reading ... done INIT=/home/bgee/.therion:/etc:/usr/etc:/usr/local/etc SOURCE=/home/bgee/.therion:/usr/share/therion:/usr/local/share/therion: CAVERN=cavern METAPOST=mpost PDFTEX=pdfetex IDENTIFY=identify CONVERT=convert