J´ai trouvé un lien qui pourrait t´aider :
http://www.hardwareanalysalysis.com/content/topic/2006/
Regarde en particulier les lignes ci-dessous :
1) NetMeeting has got Remote Desktop Sharing activated, preventing the game engine from hitting the high-res. This is unlikely.
2) There´s a 3dfx DLL of sorts in the Windows SYSTEM32 folder. It´s presence is enough to make Wolfenstein try to load it, and fail. Deleting this was my solution and it worked.
3) Upping the AGP Aperture size in your BIOS to the correct value ( or over it, to 256MB) can prevent this, as well.
Regarde ça aussi :
http://www.uq.net.au/~zzmbisho/how_to_fix-OpenGL-Subsystem.html
Bonne chance !