Got the same problem, with the xserver-xorg-driver-i810 in dapper. Not the original version (1:1.4.1.3-0ubuntu6), but when I install the (1:1.6.5-0ubuntu1) from beryl repositories, I get the same problems.
But I have to install the newest driver, to getting aiglx working proberly. I want to link to this bug also, because it follows the driver version of i810(1:1.6.5-0ubuntu1): https://launchpad.net/distros/ubuntu/+source/xserver-xorg-driver-i810/+bug/60061 -- performance issue in Edgy with i810 driver https://launchpad.net/bugs/61306 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs