If the combo key "Ctrl+Shift+C" is pressed in-game it will disable the text chat windows. However this key is not listed in the controls section of the options window.
I have come across some players who have pressed these keys by accident and were left with their chat disabled but didn't know how to enable the chat screen. There has been posts in the forums about this problem.
I feel it would be nice if this shortcut key was listed in the controls section so people would know the combo key needed to enable the chat screen again.
Thank you.