Monitor xl2546 is dying?

[ixenovia]

Hi,
After that my Pg258q got menu bugged, I bought a xl2546 and sometimes, (I can t see a pattern, so I think is enough random)
I get strange Artifacts/linees on the monitor. The situation isnt tragic, it happens rarely, 3-4 times every hours for a second each.
I tried to change cable and port on the video card, the monitor reset, dyac off and nothing

I hadn t any problem on other monitors with the video card so I dont think is it
I left here a video about the problem

https://www.youtube.com/watch?v=h2ZfnTmfREE

If you have some idea that can help me is appreciated.
Probably in next days/week I ll write my thoughts about the xl2546 and the pg258q

[RealNC]

That looks like a damaged monitor to me, especially if using another monitor with the same cable does not have the problem.