Return to Castle Wolfenstein - Could not load OpenGL subsystem

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17 Aug 2011
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I’m running the retail PC CD-ROM of Return to Castle Wolfenstein on Windows 10.

It works perfectly fine apart from in higher or widescreen resolutions.

Everything is fine up to 1280x960, any higher and I either get a grey window, rather than the game in full screen, or an error (for widescreen) ‘Could not load OpenGL subsystem’.

1280x1024.png


1920x1080.png


I have googled these issues and applied the following ‘fixes’:


Code:
Replace opengl32.dll

In:

Code:
C:\Program Files (x86)\Return to Castle Wolfenstein\Main

Also tried placing the file in different folders (as mention on various sites)

Code:
C:\Program Files (x86)\Return to Castle Wolfenstein\Main\gl
C:\Windows\System32 (removing ones in the above locations)

This has made no difference.

Can anyone advise any other solutions for this issue please?

Lenovo Thinkpad P50
 
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