Solved Some strange issue with key "D" on the keyboard

Hi all !
I apologise for not being able to find a similar topic, but I am encountering something that might be defined as a strange, at least.
Whenever I am in a game and press the button "D" it backs me to the server at the beginning (after I have logged in and have to option to enter chat or create/join a game) It is the same as if I have pressed ESC button and choose "SAVE AND EXIT". This happens even in important moments, so it's annoying...
If I am in a Single Player game, whenever I press "D" it will "SAVE AND EXIT GAME" automatically and get me back to the main menu.. As if all this wasn't present before, I don't know.
If someone might assist me to solve it, I would be grateful !

I found it. It is in the configuration file. Now, the question is, how should I fix it in order not to ruin the whole file... ? Can I change it to another key freely ? What should I type in ""Quick Next Game Key: VK_d"" in order to use F12. How can I put it properly ? F_12 or ?

 

By uncommenting you mean to delete/remove the text after the ":", right ?. All should be like "Quick Next Game Key:", when I want just to disable it, I guess ? I apologise again, maybe the whole topic should be part of the general integrated-STING discussion. I just didn't realise it at the beginning