Weird black screen sometimes(gpu troubleshooting)

[zdemigod]

So after a long battle i finished building my first gaming pc, it currently has a gtx 1080 (msi armor OC) for gpu, and sometimes when i put a video , i get a few black squares that cover half the video screen and then after a few sec they dissapear and video goes back to normal. this happens only if i play a video on browser, and if i go fullscreen. I just want to know if this will develop into something worse cuz rn it doesnt even bother me. but if there is an easy solution ill take it   my gpu temps under pressure doesnt reach 80s(in C) and on normal is around 50(in C) (seen in msi afterburner), also not overclocked outside of factory oc.