Mapping file paths

Hi everyone
We have 2 computers and using collaboration. Server set up and working but can't solve the issue with linking. Both computers have identical media at different locations.
How do we set this up so we don't need to relink every time from either machine.
I've tried the mappings in preferences but can't get it working. Is there something you need to do once you list the mappings for the changes to take effect?
I assume the 'add' is to first off locate media on your machine and the following field is where you mentally type the path on the opposite machine.
Then there's the issue of cache files!
Help!
We have 2 computers and using collaboration. Server set up and working but can't solve the issue with linking. Both computers have identical media at different locations.
How do we set this up so we don't need to relink every time from either machine.
I've tried the mappings in preferences but can't get it working. Is there something you need to do once you list the mappings for the changes to take effect?
I assume the 'add' is to first off locate media on your machine and the following field is where you mentally type the path on the opposite machine.
Then there's the issue of cache files!
Help!