no transp. shadow with GI
 

I just don´t find the error!

I try to render a raytraced shadow from a semitransparent ball. but as soon as I activate the GI or Caustics in the MR global settings - the shadow looks like depth map with no transparency.
played with all settings for over 1 hour - still can´t find what´s wrong. allthough I took the same settings as discribed in the book MAYA6 from Mahintorabi...

plz help me out!

found it by myself.

under GI -> "Direct Illumination Shadow Effects" was not checked.