You can take screenshots in DirectX mode by pressing the Print Screen key. Taking screenshots is currently broken in OpenGL mode, we'll have Pedro fix this for the Episode 5 release.
 
You can take screenshots in DirectX mode by pressing the Print Screen key. Taking screenshots is currently broken in OpenGL mode, we'll have Pedro fix this for the Episode 5 release.
Uh... it is? I don't recall any trouble taking screenshots in OpenGL - tried it just a second ago, as a matter of fact.

...Or were there problems in episode 4 that I've already forgotten about? :p
 
It is, for me at least... although I changed my video card from a nVidia to an ATI in the meantime too, so I'll re-check and try to pinpoint the problem...