Megatouch Force EVO poor LCD Picture Quality

[STL_Tom]

I just put a brand new monitor in my Merit Force EVO.  It is  a 15" Samsung.  It is the older style with the monitor controller board and inverter board stuck to the backside.  It works well but there are some annoying quality issues.  I see rolling horizontal wave in the display.  The other monitor I pulled out of it was a newer "Smart" panel with the shielded boards on the backside.  Same noisy display.

Are MegaTouch machines inherently noisy with display artifacts?  or is there something I can do to improve this?

Thanks.

[paigeoliver]

I have a pretty old Megatouch upright and it also has a noisy display, however the monitor in it is a Happ Vision Pro and all 3 of the Happ Vision Pro monitors I own are noisy.