Graeme-- Gnome is my preferred display manager, so the prefdm script calls gdm. It's failing with the message "Unable to load agpgart module" in the gdm log file. In googling around, I've found several cases of the same problem with the ATI Rage 128 card and the 2.6 kernel...could you point me to some clear instructions on how to get this module set up? Thanks... rj