3rd. Touchscreen on IPC

Hello,

Last weak i bought a 3rd screen for my IPC.
It a elo 17'' 1725L screen. it works perfect!
But when I shut down the console, or I restart it, the IPC doesn't make a third screen of it, but a clown of the second ( left hand ) screen. After restarting i have to disable and then enable the 3rd sreen and set the right resolution, before it works again.
Does anybody know how i can save the settings for the screen?

Thanks,
Simon
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