i find!

Code:
 my.skill99 = newton_addentity(me, 15, NEWTON_BOX, onforceandtorque);
NewtonBodySetMaterialGroupID(my.skill99,box_nmat);


this is bad one...


Code:
 
NewtonBodySetMaterialGroupID(newton_addentity(you, 1, NEWTON_SPHERE, Bulletforceandtorque),bullet_nmat);

this wokrs

1st prize: Lite-C and Newton 2.17 by Vasilenko Vitaliy

Newton2 videos: http://tinyurl.com/NewtonVideos
LiteC+Newton2 discussion: http://tinyurl.com/NewtonWrapperDiscussion
Latest LiteC+Newton2 version(v23, from 29.10.2009): http://depositfiles.com/files/ae1l0tpro