I have an ATI Xpert 128 AGP video card w/16MB RAM. When I used Windows, OpenGL was fine. Having switched to RedHat, anytime I try to run anything that uses OpenGL, the computer freezes and I have to log in via a ssh connection and reboot the computer. I have tried this both in RedHat 7.1 & Mandrake 8.0 & 8.1. Is there something special I need to do to get OpenGL working on my machine? Even the GL screensavers lockup the current session. My system is an AMD K6-2 450MHz, 256 MB RAM, 43 GB combined hard drive space, and the ATI card. Any suggestions? Thanks. Mark PS Where is the spell checker in Mozilla 0.9.5?