External casts not using relative paths when protect movie

["TomasLewis" <webforumsuser@xxxxxxxxxxxxxx>]

We make educational software using Director - the basic form of the software is 
a stub movie projector with a load of protected movies in a series of folders 
and sub folders - shared resources are located in external casts within the 
folder hierarchy but not necessarily within the same folder as the movie - this 
has worked fine for ages. Navigation between movies is working fine, but..

 ..some of the movies are looking for external casts at their original 
locations (absolute paths) rather than relative to the movie file, so I can't 
port the project to another computer/ release the software without getting the 
error messages.  Even when I recreate the movies from scratch and link up the 
external casts, I am getting the same result, almost as if the dir to dxr 
process is not switching the movies from absolute paths to relative paths..??

 Any ideas appreciated!

 Tom