fsx crashes with Nvidea surround

Recently I bought a Gigabyte geforce 960 gtx. I was told Nvidea was working good with FSX.
I have installed fsx and want to play the game on 3 monitors ( all 3 are Samsung SMB 2440.)
I have cofigured Nvidea surround, bezel correction and my config is 6048 x 1080.
I start FSX ( no addons) and i can only strech or play fulle screen. In full screen, my 4 th minitor connected,( Samsung smb 2220) is turning black. I can play the game, but if i go into a menu and choose a sub menu fsx stops with a tatal eror. I reinstalled FSX but have the same problem. In fsx i configger the display settings to 6048 x 1080.
Can anybody help me out.

Bouke Helder
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