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

[louiscifer]

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!!!!!!!!!!!!!!!