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how i fixed my "could not load OpenGL subsystem" problem
I know lots of people had/have this problem, and I got sick and tired of the same old go-nowhere answers so I eventually looked in to it and figured out what was going on (at least for me).

The problem as I had it is that RTCW is quirky about setting video modes - set them wrong, e.g. to an incompatible setting and RTCW will crap out and remain crapped out. For me, what worked was forcing RTCW to open in a lower mode that will allow the game to successfully start.

To do this, find wolfconfig.cfg (typically in Steam\SteamApps\common]\Return To Castle Wolfenstein\Main. Edit the file in Notepad or something else, and there's only one value I had to change:

seta r_mode

I set this to 3, which is a lower resolution that cleared up all the OpenGL initialization problems. I'm running it on a 17" HP Pavilion, so some modes crashed the game and gave me the OpenGL problem all over again. If this happens to you, do what I did - go back to the .cfg file, reset r_mode to "3" and keep tweaking until you find the best mode that works.

Hope this helps.
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>M@tEo$< Jan 13, 2014 @ 11:45am 
The default value is 4, 1024x768 if I'm not wrong :)

To check the default value of a cvar, bring up the console and type /command without any argument.
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Date Posted: Jan 13, 2014 @ 11:06am
Posts: 1