Carte graphique...big blem

Bonjour, je shouaiterai jouer a mon jeux Jedi Knight academy, j'aicet erreur lorsque je le lance j'aimerai bien que l'on maide a la trouver car sa fait 3H que j'essaye dans succès biensure j'ai vu GL open ...couldn't load alors j'ai eu le réflex d'actualiser mes drivers petit probleme j'ai un ATI RADEON EXPRESS 200 MO SERIES comme carte graphique et je n'ai pas trouver son drivers (je pense que c'est sa le probleme mais peut-etre d'autre me diront que non .. )
J'espere que vous pourez m'aider dans les plus brefs delais merci d'avance
PS : L'erreur que j'ai est marqué juste en dessous

JAmp: v1.0.1.0 win-x86 Oct 24 2003
----- FS_Startup -----
Current search path:
C:\Program Files\LucasArts\Star Wars Jedi Knight Jedi Academy\GameData\base\assets3.pk3 (16 files)
C:\Program Files\LucasArts\Star Wars Jedi Knight Jedi Academy\GameData\base\assets2.pk3 (62 files)
C:\Program Files\LucasArts\Star Wars Jedi Knight Jedi Academy\GameData\base\assets1.pk3 (8320 files)
C:\Program Files\LucasArts\Star Wars Jedi Knight Jedi Academy\GameData\base\assets0.pk3 (15346 files)
C:\Program Files\LucasArts\Star Wars Jedi Knight Jedi Academy\GameData/base

----------------------
23744 files in pk3 files
execing mpdefault.cfg
execing jampconfig.cfg
couldn't exec autoexec.cfg
...detecting CPU, found Intel Pentium IV

------- Input Initialization -------
Skipping check for DirectInput
Joystick is not active.
------------------------------------
...initializing QGL
succeeded
...setting mode 4: 800 600 FS
...using desktop display depth of 32
...calling CDS: ok
...created window@0,0 (800x600)
Initializing OpenGL driver
...getting DC: succeeded
...GLW_ChoosePFD( 32, 24, 8 )
...35 PFDs found
...GLW_ChoosePFD failed
...GLW_ChoosePFD( 32, 24, 0 )
...35 PFDs found
...GLW_ChoosePFD failed
...failed to find an appropriate PIXELFORMAT
...restoring display settings
...WARNING: could not set the given mode (4)
...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)
GLW_StartOpenGL() - could not load OpenGL subsystem

Configuration: Windows Vista
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