I get this error when I try to run startmol --test (or --osx): /usr/lib/mol/0.9.70/bin/mol: error while loading shared libraries: libX11.so.6: cannot open shared object file: No such file or directory The file exists in /usr/X11R6/lib ... I am running Xfree86 4.4, but I doubt that would say it couldn't find the file when it actually is there. Any ideas? Stefan Wrobel