I also struggled with this in vain. A little something I worked up with is simple and allowed me to access networked files and folders: shortcuts. For my movies library, I create a folder named "Movies", then went to all network drives that have movie files on them, select and created shortcuts for all those movies, then moved the shortcuts to the "Movies" folder I created locally. And so the Movies library is in actuality a library of shortcuts to all the movies. The same thing can be done with other files and folder types. If you know a better way, let us in on it.