AudreyWinter: Haha, I just realized something very ironic! Ironic how? Well, ironic as in the game HAS a built in screenshot function. Only we are not allowed to use it how we'd like to. SO not nice. Should be an easy fix in the long run.
Anyway, every savegame creates a screenshot, right?
So as a dirty workaround you could fire up Fraps (or whatever tool you use), position your finger over the screenshot key, press F5, shoot! Because while you save, the UI is hidden for a short time. No spontaneus action snapshots with this method, but you can make nice shots of the scenery at least. Shoulda thunk of that last night when my breath caught, awestruck, standing on a precipice and looking down a canyon...
I dunno if the UI is hidden long enough to hit the screenshot button on a extremely fast high performance rig, I can only say that there's a one or two seconds window with my quad@3.2MHz and GTX460 on ultra sans ubersampling.
I noticed this every time I quicksaved...but I never got the idea to use it for screenshots. You're brilliant, thank you! :)