Winter Soldier

Level 25
As @BoraMurdar said it seems like a hardware problem, perhaps relating to the video card.
Are you using a desktop PC? In this case you should check the connections monitor/pc and check the insertion of the card into the slot.
It might be also a problem of overheating due to the heatsink full of dust or something else.
Difficult to make a correct diagnosis.
 

Yoda

Level 3
Verified
I had the same problem and it was monitor's fault. (LG Monitor)
It was happening during the screen resolution changes.
Have you tried another monitor?