It keeps flashing

As I gamed the evening away and it slowly turned to night, I started to notice that something was wrong. Well not wrong per say. But it wasn't right.

Every few minutes the screen would flash or flicker. Like the image changed for a microsecond or the screen went blank.

Im certain that it was fine at the start and then gradually started to happen more and more as the night went on. As thankful as I was for someone to have set the computer up for me I cant help but wonder if he broke it.

What of he bent a pin in a cable? What if hes damaged something else like the gpu if he wasnt carful. But other than that flicker its all been fine. Maybe its just a loose connection? Yeh it probably is, I say to myself as the screen blinks again. I swear there was some text or something that time?

Ill have to check out the cable. But maybe just one more game first.