Hey Thomas,
I would say it should look more like this:
http://www.vincenttermaat.nl/mafia-eyefinity.jpg
The problem I'm having with Amnesia is that apart from the big stretching it also zooms in very much. So something that's quite far away on my left/right side looks like it's right next to me. As you can see in the picture of my first post, the red-slushy thing which starts on the right of the middle-screen is quite far away, but on the right-screen it looks like it's right next to me. If i turn my head to the right it's much further away again
.
Because of this constant "zooming", if I walk around the maps, my left en right screen are constantly speeding accross the walls, people and stuff that are very far away, like they are much closer.
I posted a fraps-recording on YouTube, hopefully that will explain to you what I mean:
http://www.youtube.com/watch?v=WAGzPFh-YWE
For comparison, if you look at my Crysis eyefinity video, you will see that there is much less tunnelview and distortion on de left and right side of the screen.
http://www.youtube.com/watch?v=XPyL6xtZQDA#t=0m40s