Fortran program under Ultrix 4.0 - Fortran V2.0

[Bryan Emery]

I have a program that is about 3000 lines long.  It compiles and runs under
VMS 5.0 Fortran with no problems.  It also compiled and ran on a SUN 4.
However, on my DECstation 3100 (supposed to be much faster than my VAX)
it compiles with some WARNINGS - no ERRORS.  When I try to execute the
result it runs for a short time (about 3-5 minutes) then does a core dump
and quits with no explicit error message.  I tried using the debugger but
I don't know much about using debugger.

Any suggestions??

Bryan Emery