Hi, >> I understand Suse 9.1 is one of the latest releases from Suse, but I >> can't find much technical information one their Web site. Could you >> maybe tell us which version of glibc and Nvidia drivers you're using? >> rpm -q glibc > > > glibc-2.3.3-97 That's equivalent to what we're running on Fedora 2 workstations: glibc-2.3.3-27.1 We're really using equivalent systems. >> glxinfo | fgrep 'version string' > > > This hung my machine! Mmmmmh... It could be that we all have issues with Nvidia drivers after all. We have removed the Nvidia drivers from one workstation and so far it looks like Matlab works better. Not that it means much. I'm not sure it has been extensively tested yet and even if it had, it could be that the symptoms have disappeared on the surface, but the real problems such as memory corruption remain under the hood, possibly resulting in unnoticed miscalculations. Anyway, this should show the version of the OpenGL drivers without crashing your system: locate libGL.so.1.0. Dimitri