http://www.rtcw.jolt.co.uk/content/faq/rtcw_faq.html :
"Could not load OpenGL subsystem"
The drivers provided with Windows XP do not include the opengl driver. If you see this error message in the 'console box' when trying to run RTCW, 99% of the time, the solution is to install proper drivers, either from the people who made your videocard or the people who designed it - usually NVIDIA or ATI. If you have a normal PC with a normal videocard, I suggest getting the driver from NVIDIA or ATI, as appropriate, but it can be less straightforward with laptops or "videocards" that are built into motherboards. Also see this other topic involving drivers.
After you have updated the video card drivers, rename the wolfconfig.cfg and wolfconfig_mp.cfg files (this is so they do not take effect and RTCW makes new ones, whilst also keeping a backup of them).
ALTSÅ DU SKAL HAVE DEN NYESTE DirectX :
http://www.microsoft.com/windows/directx/downloads/default.asp
Og så skal du hente den nyeste driver til dit grafikkort.
Højreklik på "denne computer" og i egenskaber
Så vælges hardware/enhedshåndtering og i skærmkort kan du se hvilket grafikkort du bruger, hvis det feks er NVIDA GeForce, ja så skal du finde din driver hos NVIDA.
VH Palle Hansen