There are some difficulties deep in the apple graphics driver implementation that prevent X11 and openInventor and openGL stereographics. I can report that mac-bootcamp-windows running with a quadro fx 4500 (card supplied by apple, other cards have the wrong firmware); does correctly do stereographics under XP windows correctly with no noted problems. ========================================================================= Matthew Dougherty *** 713-433-3849 National Center for Macromolecular Imaging ========================================================================= =========================================================================