pflow problem

im getting unhandle exception error rendering a simple animation of 20particles. The particles are shape instanced sphere with a noise modifier. The problem only appears when render the animation.

How can i fix this problem.

The first frame always render perfect, the error pop up starting the second frame.

Error message: Unhandled eception: preparing instances.

3dmax 2009 SP1 creativity extension + Vray 1.5 SP2

I think the problem is related to the noise modifier, If i disable it the render goes ok.
But i need the noise animation. What can i do?

Which object is the Noise modifier applied on?

Best regards,
Vlado

Maybe the error message is displaced due to an overflow of your memory limitation of 1.7GB per application, if working on a x86 (32-bit) OS.