Open GL Error

Ok when I load up the campaign this comes up

Wolf 1.32 win-x86 May 1 2002
----- FS_Startup -----
Current search path:
c:\program files (x86)\steam\steamapps\common\return to castle wolfenstein\main\sp_pak4.pk3 (21 files)
c:\program files (x86)\steam\steamapps\common\return to castle wolfenstein\main\sp_pak3.pk3 (14 files)
c:\program files (x86)\steam\steamapps\common\return to castle wolfenstein\main\sp_pak2.pk3 (232 files)
c:\program files (x86)\steam\steamapps\common\return to castle wolfenstein\main\sp_pak1.pk3 (1342 files)
c:\program files (x86)\steam\steamapps\common\return to castle wolfenstein\main\pak0.pk3 (4775 files)
c:\program files (x86)\steam\steamapps\common\return to castle wolfenstein/main

----------------------
6384 files in pk3 files
execing default.cfg
couldn't exec language.cfg
execing wolfconfig.cfg
execing autoexec.cfg
Hunk_Clear: reset the hunk ok
...detecting CPU, found AMD w/ 3DNow!
Bypassing CD checks
----- Client Initialization -----
Cmd_AddCommand: map_restart already defined
----- Initializing Renderer ----
-------------------------------
----- Client Initialization Complete -----
----- R_Init -----
Initializing OpenGL subsystem
...initializing QGL
...calling LoadLibrary( 'C:\Windows\system32\opengl32.dll' ): succeeded
...setting mode 9: 1600 1200 FS
...using colorsbits of 16
...calling CDS: failed, bad mode
...trying next higher resolution: failed, bad mode
...restoring display settings
...registered window class
...created window@3,22 (1606x1228)
Initializing OpenGL driver
...getting DC: succeeded
...GLW_ChoosePFD( 16, 16, 0 )
...59 PFDs found
...hardware acceleration found
...PIXELFORMAT 2 selected
...creating GL context: succeeded
...making context current: succeeded
...WARNING: fullscreen unavailable in this mode
...setting mode 9: 1600 1200 FS
...using colorsbits of 16
...calling CDS: failed, bad mode
...trying next higher resolution: failed, bad mode
...restoring display settings
...window already present, CreateWindowEx skipped
Initializing OpenGL driver
...WARNING: fullscreen unavailable in this mode
...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

how can I fix it? also when I play RTCW online it loads fine.