https://bbs.archlinux.org/viewtopic.php ... 1#p1033171
You maybe all know the trick but here it is:
editing the .profile file in home folder with
helped me quite a lot with gnome 3.2 and catalyst 11.12 !
In the case of Gentoo/Sabayon Linux, the ".profile file in home folder" would be ~/.bashrc or ~/.bashrc_profile (see Gentoo Handbook Part 2 Chapter 5).
Might be worth trying the above to see if it makes a difference with GNOME 3 when using the FGLRX (AMD Catalyst 11.11 and 11.12) driver.