Is there a way, It's really annoying that I have not been able to figure this out

http://www.gamesas.com/topic/1148071-important-forum-information/

Look in there.

For Steam, F12

I know how to take a steamshot, but for some reason, the Bethesda photo editor doesn't accept it.

I'll add to that - trying to do the same. I'm guessing my screenshot is a bit high res for the photo editor to be able to handle... not sure how to rectify that though.