Miért nem indul a wolfeinstein retun to castle?

ezt írja ki:

...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)

...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