C51: Compiled ouput on two PC not same

Hi all,

I am using C51 V4.1 for a project. Recently I found that the compiled output on my PC and on my colleague PC are different. Settings on two PC are the same (compile option, optimization, etc). I checked the .m51 files, seems the size of certain functions are not the same. For example:

In my PC m51 file: CODE 8CA0H 000CH UNIT ?PR?REM_LOCATED?REMDLL

In another PC m51 file: CODE 8CA0H 0011H UNIT ?PR?REM_LOCATED?REMDLL

However, when I check the .lst files of that modules on two PC, could not find any difference. The assembly listing are the same.

Can somebody point me to the right direction? Thanks for the help