HELP i tried to start return to castle wolfenstein...
 

but it didn't work!!!!
this is the failure notice in the wolf console:

...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


please help me!!!!!!!!!!!!!!!

What this has to do with the purpose of these forums is beyond me.
However find a search engine and search for opengl.

update your video card driver

i had the same problem - out of date tnt2ultra drivers - go to your card manufacturers website and get the latest drivers