I tried that at the time, with no dice. I found out it was a glitch though. While playing the game, my computer crashed and restarted. After restarting the game from there, the Mouse look option worked. Thanks to you and x7xas4UprEta for the help.After changing that in the options, click on "Continue" instead of "New Game". That worked for me.
Also, I sort of just copied and pasted a name to mention them, and it's a link now. That's fine, right?