File path pointing

Hi there, i just want to ask some question related to file path. Every time we run a script from external file, when selecting the file, it will have a check box for save relative path. I want to know that what is the different for this option. Because now i facing a proble related to file pointing, let say i have a set of db files in my pc, if i make a copy of file to another folder and open it, sometime the script still will call the original file, it means i have open 2 files with the same name. It will not automatic point to the folder i select, it make me need to check all the script and do the repointing to the correct file again. For multiuser environment, the client site will face a error for could not find the file even the file already open. All my fm files have select the save relative path option, is that i should not select this option for best result.

Thank you for helping

Regards,

Henry