Hi folks - I forgot to mention - the following machine specific include files need to be retrieved through anonymous ftp at sdsc.edu : bin.h arg. tag.h sdscconfig.h im.h They are found in the sdsc and image tar files in SDSCPUB.[machine architecture].GRAPHICS ( yes, there server is a vax !! ) These can be placed in the module directories, or /usr/include These header files are included in the same tar files as libim.a and libsdsc.a - both of which need to be installed in /usr/lib for this module to compile correctly. Have fun, terry --- Terry Myerson International AVS Center North Carolina Supercomputing Center avs@ncsc.org