What is your monitor resolution size, and is the game set to that size?
I ask because I remember reading a post here that small resolution size led to options being "bumped" off, and in your screenshots it appears your options take up all the space available. For me, the options only take up two columns:

So, as a quick experiment, see if you can increase your screen resolution, increase the resolution in the game's Video settings to match, and see if the option shows up.
(Bugs me to no end that I cannot find that post. I found it while just browsing one day, and now that I really need to find it, I can't)