The Penny-Arcade game a.k.a. RSPoD is out today and it bombs on me with: "Could not find a compatible display device // Make sure your display device supports OpenGL 1.2 and the following extensions: ARB_multitexture ... ARB_texture_compression EXT_texture_compression_s3tc". On my system, OpenGL is provided by MESA 7.1-0.29.fc9, and according to glxinfo, some required extensions are missing. That wouldn't be so bad, but I have no idea what how this may be corrected. Hardware OpenGL in the video card, I guess. I have "Radeon Xpress 1100 IGP", which is a low-end mobile card.
UPDATE: Received the following e-mail:
Hi I had the same problem on Vista, because on my laptop the latest installed drivers were the ones I got from windows update. I then installed the ones that came from the manufacturers site and voilà..
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UPDATE: See Anholt's entry.