Problem running Return to Castle Wolfenstein with OpenGL

Ok I got the game today and installed it fine but when I run it I drop to desktop after about 5 seconds of the usual black screen you get as the games starts. I get a console screen which shows all the things that were initialized when the game was executed and in it I get the following (Don't undestand it myself ):

_____________________
Initializing OpenGL subsystem
...initializing QGL
...calling LoadLibrary( 'C:\WINDOWS\System32\opengl32.dll' ): succeeded
...setting mode 3: 640 480 FS
...using desktop display depth of 16
...calling CDS: ok
...registered window class
...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)
...setting mode 3: 640 480 FS
...using colorsbits of 16
...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
______________________

Not sure if that lot makes any sense to anyone but anyway.....RtCW needs to run using OpenGL apparently and I'm sure I'm running with D3D. Is there a way to switch to OpenGL? Or should this be dealt with automatically by my comp?

This is what I'm running it on:
Windows XP Pro
AMD Duron 900
15.2 Gb HDD
448 Mb SDRAM
Geforce 2 MX 400 64Mb
(Not sure what the mother board is)

This happened to me a few years ago when I got Quake 3 but I had a different computer then and can't remember how I resolved it.

I'm using the latest drivers for my graphics card and latest version of DirectX (8a I think), also I've re-installed the game once. I can't even get to the game menu to change any video options. Any help with this would be greatly appreciated. Thnx in advance.