Animation clip works great in editor when playing but not in a built project

Hi

Using Unity 3.5 Pro.

I have an animated skinned character imported from 3dsmax with an animation clip of him performing an action using the following code:

Code (csharp):

1.  
2. wsoStopCharacter.animation.Play("Take 001");
3. yield WaitForSeconds(10);
4. wsoStopCharacter.SetActiveRecursively(false);
5.  

And later when the camera comes back into this area I unhide the character and rewind and play his animation clip with...

Code (csharp):

1.  
2. wsoStopCharacter.animation["Take 001"].time = 0;
3. wsoStopCharacter.SetActiveRecursively(true);      
4. wsoStopCharacter.animation.Play("Take 001");
5.  

This all works great when I play in the editor but in a Windows or Mac build the second time I call his animation he is invisible. The camera is just looking at the spot where he should be.

I have checked that the camera isn't using a culling mask.

I can't figure this out. Works in great in editor, but doesn't work in a built project on either windows or mac.

Any help would be much appreciated.

Thanks