Something is wrong on your system, the current fglrx version on Feisty is 8.33.6 (at least). You should check your sources.list and do an upgrade.
-- [Feisty] Regression: X freezes on 2.6.20 with fglrx https://launchpad.net/bugs/77957 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
