[Papervision3D] Strange problem with model

[Dav]

Hi guys, just a quick question.

I have a DAE model that I'm animating in Papervision 2 however I there seems
to be a problem with the ColorMaterial overlapping objects that are close to
others, please take a look at the following link to see my problem.

http://79.170.40.163/flashdev.com/NSRP/

Any ideas how I can stop this from happening?

Thank you!
Dav