fglgo seems to pick up the wrong environment

I'm trying to test a new component in my system, calling it through a shell script from within a 4gi program. Unfortunately, whenever I run the test, I call the old (live) script. Running the script from UNIX gives the test result I want, running it from within a i4gl, I call the live script - in other words, I'm not testing the component. Details of my checks are listed below TIA Robert Stuart If I type $ which some_script I get /my_test_path_to/some_sript Where /my_test_path_to is set in my PATH environment variable If I write and run the following through fglgo MAIN RUN "which some_script" END MAIN I get /the_live_path_to/some_script Where /the_live_path_to does NOT exist in my UNIX shell environment ... nore does it show up when checked through fgl_getenv( "PATH" ). $ which fglgo gives me the standard location of my informixbinaries, fglgo is a binary $ fglgo -v INFORMIX-4GL Version 4.11.UC2 Pcode Version 8 Software Serial Number [some serial no]