I have a 34 inch curved Alienware monitor with gsync. It’s 3440X1440. I ran across a problem where when I full screen a video during the video it will blink black the whole screen and then when I close it from full screen it will blink black too. Idk if this has always been happening but I remember at the beginning when ever my computer would be in sleep mode and I’d wake it up it would come up with the log in screen and for one milli second it would blink black and then that would be it. What is this? Does this mean I have a defective monitor?