Why dose my screen freeze when i change to full screen

[mike julian]

sometimes when i watch vidoes on you tube if i don`t enlarge the screene it will play ok but when i do enlarge the screene it would go so far then the screen would freeze but you can hear the video playing in the background then i would have to go back and enlarge the screene again i could have to do this a number of times during the play it`s most annoying can anyone tell me what i can do to rectify the problem

THANKS MIKE :

 

[hubbardt]

This sometimes happens to me if I select the highest quality (720 or 1080).
I then use a quality setting one lower and it plays ok.