display problem. what's the cause?

[bennyfactor]

This one is for all you monitor gurus out there, as i know next to nothing about monitors.

This pic is from a phoenix cocktail that has a display glitch - the picture curves up on one side. I'm wondering if anyone could tell me whether it's more likely to be a problem with the monitor or the game board?

the curve is always on the same side regardless of whether the screen is flipped (player 2)

any help would be appreciated

Bennyfactor

[grantspain]

Looks like just an adjustment to me,try adjusting the horizontal position or hold pot on the chassis-if its an old chassis worth tweeking all the adjustments could be just a bit of dirt in the pot-pretty sure its not a major problem.def not your game board.