I'm not getting the same luck as you guys... I can't see my 1920x1080x3 Bezel Compensated resolution, however it does list the 5955x1080 resolution on it's own.
Here are some results of the trippy behaviour when you don't use the "x3" res.
Firstly, it's Hor+ fine...
However as you can see, the HUD doesn't center.
Also, intros are stretched and zoomed and videos are flipped on their heads! Note, I pasted a couple of these screenshots incorrectly, but you get the idea.
Menu is also stretched weirdly across the screens, and options do not show up to click on until you mouse over them by luck..
All of this is solved if you choose a 3x resolution. The HUD centers, menus center, cutscenes are fine, but I don't get my max res listed :(
Doesn't offer the "3x" option for it. I thought maybe it just can't go that high, but Abram you get your 1920x1200 BC resolution listed! So I don't know why it doesn't work for me :( /cry