libGL error with radeon drivers (partial solution)

Hello,
I am using kde3.2 with debian-unstable libqt3-mtc102.
I am using radeon with ati proprietary drivers.
All is fine except this error when I try to start some open gl application:

cala:~$ /usr/lib/xscreensaver/rs-flux
fglrx: Failed to initialize QS connection!
libGL error: InitDriver failed
fglrx: Failed to initialize QS connection!
libGL error: InitDriver failed

When I use kde I cannot run opengl hardware accelerated (even non qt apps!!).

I have tried as suggested in this thread tu use libqt-3.3:

http://www.rage3d.com/board/showthread.php?s=&postid=1332639491#post1332639491

But now I lose styles (like I have seen in this mailing list in a previous 
message).

What can I do? Thanks in advance for any reply!