Homer -- To compile pybms on OSF you need to replace xlf with f90. You also need to make a few other changes to convert from AIX to OSF. Please see the Makefiles at http://www.slac.stanford.edu/~timb/LC/decunix_pybms_57_link/Makefile http://www.slac.stanford.edu/~timb/LC/decunix_pybms_57_link/include/Makefile http://www.slac.stanford.edu/~timb/LC/decunix_pybms_57_link/wwhp/Makefile -- Tim Barklow