So I just got the game and already I'm confused as all hell. When I started to play it, I found the controls to be old but mangelable. But I think that I press a button and everything is changed. R was for run is now for reload. S was for standard walk and now it is for save etc. How do I change them back?

edit. Manged to fix it.

That would be known happen after you alt tab out of the game.

For future references of the same question simply press alt again when or after you alt tab back to game