NURBS soft body and cycyles

Hi, guys I’m new to blender and need some help with symulating NURB curve with soft body, problems i have are:

  • cycles not rendering symulation, first frame is present in all keyframes (box softbody renders correct)

  • curve is overlapping the ground, i have tried to change orbit position to bottom but nothing happens.

I have tried to do soft body simulation on bezier curve but in blender 2.63 there are odd results when using them with weight goal

rope.blend (567 KB)

you must increase " outer" under plane/collision/softbody and cloth (0.2)