Hi Matthew, I think I discovered why this has been occurring. livna-config-display, the new library developed to edit various configuration files keeps a status file in /etc/sysconfig/livna-config-display that it uses to "remember" various things such as the driver to restore on shutdown and your glx configuration (Xgl, AIGLX, None or manual). We don't have a script to auto-generate this file, so if the driver is disabled before livna-config-display is installed it never gets saved properly and that's why the error shows up when trying to enable... Can you try placing the following text into /etc/sysconfig/livna-config-display: [Configuration] active = True olddriver = nv preconfigured = aiglx [ManualOptions] composite = True gdmxgl = False aiglxflag = True compsite = True kdmxgl = False If the errors stop then it confirms my thoughts. Thanks, Stewart