If I recall correctly, the problem is that the two assembler programs shipped with Version 1.4 (LSVDDFID and LSVPUNCH) weren't shipped with modules. To fix it, just stop LISTSERV and do: GLOBAL MACLIB DMSSP CMSLIB ASSEMBLE LSVDDFID ASSEMBLE LSVPUNCH LOAD LSVDDFID ( NOMAP CLEAR ORIGIN TRANS GENMOD LOAD LSVPUNCH ( NOMAP CLEAR ORIGIN TRANS GENMOD Good luck, Ross Patterson Rutgers University Center for Computer and Information Systems ATT et. al.: (201) 932-3435 BITNET : A024012@RUTVM1 ARPANet : A024012%RUTVM1.BITNET@WISCVM Snail Mail : PO Box 879, Piscataway, NJ 08854