Problem:

Compilation and program executuion fail for some user and not for others

Resolution:

Check to see if there is a problem with user permissions in the directories being used.

Check the UNIX profile for the failing users. In some cases system administrators have used the 'trap' instruction in order to prevent users from breaking out of applications. The trap command intercepts UNIX signals, many of these signals are used/required by the COBOL product, intercepting these signals may break the scheme used by the COBOL product.