[NTG-context] U3D and presentation

Hi all, I have tried to embed an U3D model within a presentation of mine and pre-original interactions inhibit the U3D interaction... The problem is described by http://www.nibua-r.org/ConTeXt/devel/context3d.tgz How to inhibit locally the interaction setted by pre-original ? I have tried to enclose my u3d model in a \framed and the result is that the 3D annotation is now activated but I can't interact with it since a click leads to get the next page... TIA Renaud