My brother and I are working on a project together (he's arranging winds, I'm arranging percussion).  We're both using Finale 2008 with GPO and VDL 2.5.1, but he is running Mac OS X and I'm running Windows XP.  When I send him my most recent .MUS project, none of the Kontakt instruments are saved and he must reload them all for some reason.  However, when he sends me a .MUS file, all of the Kontakt settings are saved when I open it.  Any ideas on what I might need to do to get my settings to save or is working across platforms going to give us some trouble?