Script Links and Motion Blur trouble


I am trying to resolve the following python script.

import Blender
import math

ob = Blender.Object.Get(“Cube”)
ob.LocX = math.sin( Blender.Get(“curtime”) )


I have added the script to the “Frame Changed” Scene Script link. Everything works fine when I preview and when I render.

But when I render with MBLUR enabled, the script does not run on the inbetween frames. So there is no blur effect.


Blender.Redraw() * 5 ?