Hi Dario, I don't know what might be going wrong. Do the non Qt OSG examples work fine?
You don't say anything about the hardware and OS you using, this might be an issue - for instance Intel drivers are well known for being buggy. The only other thing I can suggest is to run the viewer SingleThreaded or to try out OSG svn/trunk as it contains various improvements including to osgQt. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

