Hello, Thanks to this page I have been able to activate render of my card radeon 9600.

Code:
[ etocanna@oficina ~ ]$ glxinfo 
name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
My system is FC6 + Gnome + FGLRX 2.29.06 + Radeon 9600 + Compiz but i have problems.

SAid me this:
Code:
[ etocanna@oficina ~ ]$ desktop-effects 
gnome-window-decorator: Screen 0 on display ":0.0" already has a decoration manager; try using the --replace option to replace the current decoration manager.
compiz: No composite extension
[ etocanna@oficina ~ ]$
Thanks!