Clipping problem in Java3D

I’ve translated a Quake3 map into a J3D scenegraph and am getting strange behavior where @ certain view angles or translations, the entire map disappears. I’m not sure why J3D is clipping the way it is. Any explaination?

http://rastar.merseine.nu/~hall_monty/test.swf

Regards,

Monty

your link doesnt work ;D

http://rastar.merseine.nu/~hall_monty/J3D/test.swf