Video of problem here:
https://drive.google.com/drive/folders/0BxuAPIQRIP_Kdjh2NDhGWVYycDQ?usp=sharing

Ok, the problem started to dissapear after being on for and hour. We left it on all night and now problem is back.

I believe the monitor is ok. I did not change caps on main board, I think it might be filter caps.
Has anyone ever seen this problem?

Thanks,

John