I check out your file.. maybe it's me.. but the textures weren't with it? So I couldn't help ya. I had a similar problem before with a game I was making. I madel a simple tree model with the a flat texture map for the tree top.. I duplicated it and rotated around about 3 times.. For some reason, I could only see through the leaves from one position.. the other views filled the back ground with sky, same problem you're having.

Reddog9
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