Vault Door goes crazy in animation

Vault Door goes crazy in animation:

So I have this animation with a vault door and when it opens in the animation the material on the door goes crazy. How do I stop this? Here are some frames of the animation.

http://mrmike.files.wordpress.com/2007/03/vault1.jpg
Here there is one line

http://mrmike.files.wordpress.com/2007/03/vault2.jpg
here are like four lines

http://mrmike.files.wordpress.com/2007/03/vault3.jpg
Here are like four lines on the top of the door.

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