Welcome to ISIS V1.1. This version of ISIS is believed to compile with no error messages on the following machines/OS releases: SUN OS3.5 (SUN 2, 3, 4 series of machines) SUN OS4.0 (SUN 3, 4 without optimization flag) VAX ULTRIX, Mt. XINU, 4.3bsd GOULD HPUX (Spectrum, 300 series) We also know of NO situations in which this version of ISIS will crash. So, if you find one, please tell us. You are doing all of us a diservice if you assume "we already know about the problem". Even rare problems need to be fixed, and we will do this for free with a little help from you! We have a better way to talk to X11 inside ISIS applications, but you will need to contact rcbc@cs.cornell.edu for the documentation. It wasn't ready in time for this release. Also, we have some better schemes for dealing with the stack size limits in the works (if you dislike "call_on_sys_stack") and we have a LISP and FORTRAN port of ISIS coming out soon. Contact us if you need these. They should be standard in ISIS V2.0. Oh, some warning about problems on YOUR system: SUN4 users: beware the optimizer under OS 4.0. ISIS dies if you run it. SUN4, HP Spectrum users: beware varargs() with structure passing by value; these compilers pass by reference to a copy, but va_arg() doesn't seem to know that. ISIS will complain if it has problems with this. Good luck, and please don't hesitate to co