Je ne peut lancer aucun jeux

Bonjour, j'ai installer plusieur jeux (fps),... et comme tous il me marque :
tremulous 1.1.0 win_mingw-x86 Feb 28 2006
----- FS_Startup -----
Current search path:
C:\Program Files\Tremulous\base\vms-1.1.0.pk3 (4 files)
C:\Program Files\Tremulous\base\map-uncreation-1.1.0.pk3 (110 files)
C:\Program Files\Tremulous\base\map-tremor-1.1.0.pk3 (45 files)
C:\Program Files\Tremulous\base\map-transit-1.1.0.pk3 (135 files)
C:\Program Files\Tremulous\base\map-niveus-1.1.0.pk3 (134 files)
C:\Program Files\Tremulous\base\map-nexus6-1.1.0.pk3 (151 files)
C:\Program Files\Tremulous\base\map-karith-1.1.0.pk3 (118 files)
C:\Program Files\Tremulous\base\map-atcs-1.1.0.pk3 (87 files)
C:\Program Files\Tremulous\base\map-arachnid2-1.1.0.pk3 (67 files)
C:\Program Files\Tremulous\base\data-1.1.0.pk3 (1229 files)
C:\Program Files\Tremulous/base

----------------------
2080 files in pk3 files
execing default.cfg
couldn't exec autogen.cfg
couldn't exec autoexec.cfg
Hunk_Clear: reset the hunk ok
...detecting CPU, found generic

------- Input Initialization -------
No window for DirectInput mouse init, delaying
Joystick is not active.
------------------------------------
----- Client Initialization -----
----- Initializing Renderer ----
-------------------------------
----- Client Initialization Complete -----
----- R_Init -----
Initializing OpenGL subsystem
...initializing QGL
...calling LoadLibrary( 'C:\WINDOWS\system32\opengl32.dll' ): succeeded
...setting mode 3: 640 480 FS
...using desktop display depth of 24
...calling CDS: ok
...registered window class
...created window@0,0 (640x480)
Initializing OpenGL driver
...getting DC: succeeded
...GLW_ChoosePFD( 24, 24, 8 )
...35 PFDs found
...GLW_ChoosePFD failed
...GLW_ChoosePFD( 24, 24, 0 )
...35 PFDs found
...GLW_ChoosePFD failed
...failed to find an appropriate PIXELFORMAT
...restoring display settings
...WARNING: could not set the given mode (3)
...setting mode 3: 640 480 FS
...using colorsbits of 16
...calling CDS: ok
...created window@0,0 (640x480)
Initializing OpenGL driver
...getting DC: succeeded
...GLW_ChoosePFD( 16, 16, 0 )
...35 PFDs found
...GLW_ChoosePFD failed
...GLW_ChoosePFD( 16, 16, 0 )
...35 PFDs found
...GLW_ChoosePFD failed
...failed to find an appropriate PIXELFORMAT
...restoring display settings
...WARNING: could not set the given mode (3)
...shutting down QGL
...unloading OpenGL DLL
...assuming '3dfxvgl' is a standalone driver
...initializing QGL
...WARNING: missing Glide installation, assuming no 3Dfx available
...shutting down QGL
----- CL_Shutdown -----
RE_Shutdown( 1 )
-----------------------
GLW_StartOpenGL() - could not load OpenGL subsystem

la c'est un exemple de temulous..

HELP