Triple Monitor borderless window mode

[SeaTac]

Hi Folks, I was hoping someone might be able to help me with a minor challenge I have with the game.   I have triple 2560x1440 monitors and would like to play the game across all three without having to switch on nvidia's surround.  I edited the cfg file to switch from 2560x1440 to 7680x1440, fullscreen = false, and included the command line option -popupwindow.  When the game starts it is shifted one monitor to the right.  Instead of having the KSP menu on the center screen and the two side screens showing the rest of the game, the menu is on the right monitor, the center monitor shows the left side and the left monitor shows my desktop.  Is there any way to offset so all three screens show the game?

KSP Windows 64bit 1.12.1, but I've tried older versions as well.

The link is an example of what I see starting up the game.

https://www.dropbox.com/s/xyw1yqyygf6vtaq/KSP-triplescreen.jpg?dl=0

 

 

Edited July 8, 2021 by SeaTac
added link to screenshot