Probleme compiz

Bonjour,

J'ai un petit probleme avec compiz sous ubuntu, en tapant compiz --replace voila le resultat :

Checking for Xgl: not present.
Blacklisted PCIID '8086:2a02' found
SKIP_CHECKS is yes, so continuing despite problems.
Checking for texture_from_pixmap: not present.
Trying again with indirect rendering:
Checking for texture_from_pixmap: not present.
SKIP_CHECKS is yes, so continuing despite problems.
Checking for nVidia: not present.
Checking for FBConfig: present.
Checking for Xgl: not present.
Starting gtk-window-decorator
/usr/bin/compiz.real (core) - Fatal: GLX_EXT_texture_from_pixmap is missing
/usr/bin/compiz.real (core) - Error: Failed to manage screen: 0
/usr/bin/compiz.real (core) - Fatal: No manageable screens found on display :0.0

En sachant que je dispose d'un chipset intel :

00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 03)

Je ne sais pas trop comment proceder pour rendre compiz fonctionnel.

Merci d'avance pour votre aide