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follow spline

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hi all, I have been having a little trouble with the follow path option in houdini, I am getting some areas where there is some random flipping of the following object, have tried different types of splins and adding normals of different lengths, the only way i can get the flipping to stop is if i use a polygon spline with a low vert count, but that is not really what i am after, I have attached a file if anyone wants to take a look, it would be greatly appreciated, thanks


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thanks edward, It was already on zero but you showed me the paramter above it something about an up vector, aparaently if i put this value to 1 in the z channel and not the y channel which it was in, everything fixes itself, don't suppose anyone knows why this works or should i just be quiet and be happy that it works

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