This is ORTEP-III, the Oak Ridge Thermal Ellipsoid Plot Program for Crystal Structure Illustrations. (1) If you can use `pgplot' as screen drawing routine, type % make WITH_PGPLOT=yes (2) If you are not familier to `pgplot', note the followings: Before you use ortep3 with pgplot library, run pgdisp server and setenv PGPLOT_DEV as % pgdisp & % setenv PGPLOT_DEV /xwindow then you can see the ortep-drawing on a pgplot window. Examples and documentation or on the web site. WWW: http://www.ornl.gov/ortep/ortep.html