I've played tonight with rhino, and built this woodcarved dragon head. Exported it as obj, checked polygon mesh instead of NURBS, unchecked "export layer names" and voila. Yes, it took a minute to smooth instead of the usual couple of seconds, but it imported without problems. I also upped the number of polygons to the max and first it took Rhino 6-7 minutes to export the (welded) object, and now it's 6 minutes that Bryce is importing. Still hasn't crashed, but I'm too lazy to wait for it to finish.

-- erlik