no velocity/force after build unity4 JS

first i want to thank all of you out there for showing us (noobs) the way ;-)

In editor everything works perfect, but when i build my project everything works accept the velocity of my instintiated bullet. ???????? Frustrated for a whole week.

var Bullet1 : GameObject = Instantiate(BullitHandgun, SpawnPoint1.transform.position, SpawnPoint1.transform.rotation); Bullet1 .transform.rigidbody.velocity = Bullet1 .transform.forward * 200;

Ok to be clear everything works in the editor. After build the bullet only instantiates and falls down :-( I'v done this many times before and never had a problem. now UNITY 4 Problems*infinity :-|