My center monitor shifts over to the other monitor?

[ramvo]

What i mean by this is when i maximize my browser in my center monitor a 1/4 of it is in the right monitor. When i maximize it in the right monitor its shifted a 1/4 over also.(same thing with left monitor). I have 3 acer 19" monitor with triplehead2go analog in 3840x720 any ideas whats going on. When i play wow its shifted 1/4 over its very annoying.