Object deletion and Memory Issue

Hello Everyone,

i have run across a problem regarding to the fact that i can't delete objects in Papervision3d.

i made a simple example that showcases the problem.
it simply creates 10 cube objects every 10 seconds. if there are already some cubes created, it tries to delete them.
as you can see on the memory monitor the objects still remain in memory.

http://www.perfectscript.de/memoryleaking/index.html

i have included the code.
sources.zip