the score is build up by 3 parts, a score and a sound bank (with all the instruments) and a resource file, containing all cue points.
the resource file, have to be a the same place as your score...
how the program work when load a score
the program first look at the score position to see if there is a matching sound bank,
if not it will look in the startup directory.
or else it will look in the last directory, from where it loaded it's last sound bank,
and then the program is started for the first time it will fail on all 3 points.
so 3 thing you can do, move all sound bank into the same dir as the score.
the first time the program started,load a sound bank, (no matter which one)
or go to the option menu and defined some startup dir, so will it also always start there regardless where you exit the program.
as long there is some sound, then the program is working.