screen 3rd monitor having horizontal lines only when game open

[crowdie]

Hello there, so i've got a new dell monitor that im using as a 3rd screen for work.

 

Now i got it hooked up with a DVI to DP cable into my graphicscard with my 2 other screens plugged in my GPU aswell and for some reason when i play a game on my main screen there appear horizontal black see through lines on my 3rd screen.

i have tried changing refreshrates and resolutions but none get rid of the problem.

My second screen does not appear to have any issues whatshowever.

 

I've tried plugging it in all the other DP ports but none seem to help. The weird thing is that it only happens when i got a game open.

 

And yes all my drivers are updated.

 

Any suggestions please let me know, i doubt it's harmfull for the screen but it's just very anoying.

 

**EDIT: just disconnected 1 screen and doesnt seem to make a difference

 

[crowdie]

For the people that want to see this, i'm not overclocked and there you see the power consumption.