Problem:

When chol is fired, HOL loads its configuration files
but no window appears on the screen and the log file
HOMEDIR/.rx.log looks like:

; Le-Lisp (by INRIA) version 15.25 (22/sept/92)   [sun4]
; Centaur v2.0 (2.51.7.44) chol - ven  8 juil 94 16:14:16 
** libloadfile : unknown file : termcap
** libloadfile : unknown file : terminfo
Error: ** eval : undefined variable : .....
.......
Error: ** initializemodule : error occurred when calling : #: 
centaur/resources/gfxobj/look:initialize 

Answer:

It's a bug a new version has been installed in the ftp area.
But you can simply take the patch  patch1