You have not provided enough information. What error are you getting on the machines where it fails?

I am struggling with the similar problem. What I got is "attempt to call undefined procedure/function", while the procedure/function is actually the IDL build-in procedure/function! I found from this forum about similar problem and the answer is that it's related to the way you build the .sav file. I tried differnt way to build it, like uncheck the "execute .reset_session before run or build" and check "compile all files and resolve all refreenced routines". Now the main interface of my program can be displayed, but if I click the buttons on the interface I'll get that error again. Really need help!