thanks to all of you who will participant to clear my problem.
In my opinion, the field of view (FOV) in AFS 2 is at the moment not optimized for 3 monitors in a resolution of 5760 x 1080 p (look at the pictures above) . Many other simulators and / or games can handle this resolution and there are no problems in case like these. With subprograms like WSGF or WideScreenfixer i can clear problems like this in other programs, but at the moment not in AFS 2.
I hope this problem would be immediadelty fixed by the programmers of AFS 2.
My mother tongue is not english but i try my best.