Welcome to the forum, Bryan,
Something similar to your problem is covered here....
https://www.feldoncentral.com/forums...36&#post117136
MA3 is not wide enough to cover three screens. So you will have black bars at each end, (or a distorted image).
See also...
https://www.feldoncentral.com/forums...ead.php?t=5063
You will need to have the correct video card driver setup, for a three monitor system.
.... Hope that the above might be of some help.