Taking screenshot problem.

[Erekose]

Apologies if this is not the right place 
Just of late I have noticed an increase of abuse in more and more games.  Some of it being really foul.
When I try to take a screen shot of the chat log all I get when pasting is a black square.  Any suggestions on how to fix this or another method of recording the log would be gratefully appreciated.

[MrGuarnere]

Moved to bug section.

As to the screen shot if you are playing through Steam you can setup a shortcut to take a screenshot with Steam. I have mine on F12. Not sure why you get a black box. I presume you are pressing the PrtSc button on your keyboard. What program are you using to paste the screenshot into?