Probleme d'installation enemy territory quake

Bonjour,
j'arrive pas a installer Enemy Territory Quake wars il me met:

execing 'specs/highspec_cpu.dat'
execing 'specs/highspec_gamedetail.dat'
execing 'specs/highspec_gpu.dat'
execing 'specs/highspec_gpudetail.dat'
execing 'specs/highspec_lighting.dat'
execing 'specs/highspec_foliage.dat'
Vendor:10DE Device:01DD
execing 'specs/recspec_gpu.dat'
execing 'specs/recspec_gpudetail.dat'
execing 'specs/recspec_foliage.dat'
Failed to open server license code file for reading.
Initializing OpenGL subsystem
********************
FATAL ERROR: Desktop must be in 32 bpp mode.
********************
--------------- BSE Shutdown ----------------
---------------------------------------------
Shutting down OpenGL subsystem
...releasing DC
...resetting display
...shutting down QGL
idRenderSystem::Shutdown()
Shutting down performance queries
Desktop must be in 32 bpp mode.

TRADUCTION DU TEXTE:
Execing 'specs / highspec_cpu.dat'
Execing 'specs / highspec_gamedetail.dat'
Execing 'specs / highspec_gpu.dat'
Execing 'specs / highspec_gpudetail.dat'
Execing 'specs / highspec_lighting.dat'
Execing 'specs / highspec_foliage.dat'
Vendeur: 10DE Device: 01DD
Execing 'specs / recspec_gpu.dat'
Execing 'specs / recspec_gpudetail.dat'
Execing 'specs / recspec_foliage.dat'
Impossible d'ouvrir le fichier de code de licence serveur pour la lecture.
Initialisation sous OpenGL
********************
ERREUR FATALE: Desktop doit être en mode 32 bpp.
********************
---------------- --------------- ESB Shutdown
---------------------------------------------
Arrêter de sous OpenGL
Libérant DC ...
Réinitialisation de l'affichage ...
... Fermer QGL
IdRenderSystem:: Shutdown ()
Arrêter l'exécution des requêtes
Desktop doit être en mode 32 bpp.

Aidez moi!