Video distortion

[Bluegoose2]

Recently upgraded to FIOS One Box for my five TV's.   (The small black box).  Almost immediately the video starts to distort on all or most of the screens.  I exhanged what I thought was the problem box only to have the other screens acting out. I have tried the Dash fix-it process to no avial. It comes and goes at it's liesure but is very annoying. Anyone deal with this  issue? 

[CRobGauth]

One thing to try is to make sure that all of the coax connections are tight.
Start at ONT and work to VMS.

[clem21]

What exactly are you seeing? Aspect ratio distortion,  pixelation,  incorrect color? Describe the issue better please.