I think that I found the reason for the error:
It doesn't tolerate names longer than this:
Quote:
pokedwarf6body1armsthroat1Fr.mdl
means 28 letters plus dot and ending of 3 letters.
BTW: in windowmode it still doesn't show more folders than 50 ...
If you are still loving to improve things in it:
Do you like to add that one can see the chosen mdl in different modes?
Maybe, stopping rotating, turning with mouse, scrolling through frames, see it with alpha and without alpha! 
Anyway, don't feel forced to add such wishes, it is very generous contribution!
Extremely helpful!
