this should work on later drivers version too:

# rpm -e --nodeps xorg-x11-Mesa-libGL-6.7.0-2.i386.rpm
# rpm -Uvh fglrx-4.3.0-3.11.1.i386.rpm

package will try to autocompile but will fail due to some errors in scripts, i simply modified scripts as follow:

#cd /lib/modules/fglrx/build_mod/

modifiy "make.sh" as follow:
original:-
line 187: drmdefines="-DFIREGL_403"
line 630: kcc_version_major=cat /proc/version | cut -d " " -f7
line 631: kcc_version_minor=cat /proc/version | cut -d " " -f7

modified:-
line 187: drmdefines="-DFIREGL_410"
line 630: kcc_version_major=`cat /proc/version | cut -d " " -f7`
line 631: kcc_version_minor=`cat /proc/version | cut -d " " -f7`

modifiy "firegl_public.c" as follow:
original:-
line 279: include "drm.h"
line 294: include "drm_proc.h"

modified:-
line 279: include "/usr/src/linux/drivers/char/drm/drm.h"
line 294: include "/usr/src/linux/drivers/char/drm/drm_proc.h"

then compile all code

# sh make.sh
# cd ..
# sh make_install.sh

in xorg.conf file replace this part
original:-
Section "Device"
Identifier "Videocard0"
Driver "vesa"
VendorName "Videocard vendor"
BoardName "VESA driver (generic)"

modified:-
Section "Device"
Identifier "Videocard0"
Driver "fglrx"
VendorName "Videocard vendor"
BoardName "ATI Radeon"

ive not time to post more detailed procedure, so let fun yourself and post here if u got problems

_____ KADMAN

I take back my comments untill i can verify them but it wont be for a while since i do not want to ruin my nice slackware install.

I installed fglrx-4.3.0-3.11.1 on FC2 w/ 2.6.7-1.494.2.2 kernel and everything looked good. Did not need to patch anything. However, performance drops a lot compared to 3.9.0 driver.

I installed it and everything was just fine, but when I try to play that game called Tux Racer, the mouse doesn't appear and it's fucking lagged. So, I dont think that it's working properly. Does anyone know what is going on? What I have to do to fix it?