In my enthousiasm i always download and install the newest blender version and never thought of the fact that it would be possible not to be backwards compatilbe. I never knew i could make such complicated animation.
@Ianc: I have about 99 planes and i think that there somewhere something is wrong. So i’m pretty sure its no curve or cube nor the lamps. But its to much to find that out.
I had some mirroring and raytracing in the animation which why it took about 10-15 min a frame on my Macpro!!! I have 4500 frames so thats why i bought time on a renderfarm. But i followed a tutorial to bake some textures and adjusted some other things bringing down the rendertime to 30 seconds!! Thats about 26 hours on the Mac
So I learned a lot, am not completly satisfied but i dont have to make a new animation for now.
Thanx you all