Help with Collision Detection Problem

[beedster]

Hey. At the moment I have a flash movie which consists of nine 3d cubes floating around (but confined to) the stage. Whenever they collide with each other they should bounce off in opposite directions. It DOES do this but not every time! A lot of times the cubes will interact with each other in a movement I can only describe as a "judder". I've uploaded the flash file.

Anyone know what I'm doing wrong?

[freeskier89]

I assume you have the linkage set and the variable attached to the movement to be reversed. Right? Im not too familiar with 3d in flash. By the way i havent looked at your file.