Gain, Well the part that had me most concerned was how PCI Express fit into the existing DRI and AGPgart framework. The best I can puzzle out is that PCI Express is treated as a variant of PCIgart. What is less clear is which agpgart should be used. I have found with fglrx and Radeon 9600 XT cards that there is little difference in performance between the built in agpgart in the driver and the kernel module version under Linux 2.6. However since PCI Express is so bleeding edge it is unclear which would be better there...to use the latest kernel's apgart module or the drivers built-in one. Also when attempting to judge if the DRI is working properly on PCI Express is it sufficient to just see... (II) fglrx(0): Direct rendering enabled ...in Xorg.0.log or are there any other messages from the fglrx driver I should be concerned about to make sure DRI is fully functional? Jack