Hi Robert,
Problem solved! It appears that this was either a Vista issue, an Nvidia Vista driver issue, or a combination of both. I managed to get an XP installation running using an extra internal hard drive on the 4 monitor system. With osgviewer on 4 monitors I'm getting nearly 500 fps with vsync off (and with vsync on, I'm getting a constant 60 fps). _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org