[Papervision3D] strange unload

[Eduardo Omine]

Try removing all event listeners before unloading it.
This is the documentation for Loader.unload():

Removes a child of this Loader object that was loaded by using the
load() method. The property of the associated LoaderInfo object is
reset to null. The child is not necessarily destroyed because other
objects might have references to it; however, it is no longer a child
of the Loader object.

-- 
Eduardo Omine
http://blog.omine.net/
http://www.omine.net/