My youtube screen isnt showing visual but it does audio? How to get it back to normal? (laptop, mouse)

[TySky]

My youtube is acting weird! I can go on the website and click the video but it wont show up its pitch black but I can hear the audio. Yet when I click my mouse pad 3 or 4 times I get audio and visual but with the fullscreen.

Why is this happening? I keep on turning my laptop off to reboot but its not working,its weird! What should I do? I have a 15inch macbook pro!

[plwhit]

https://www.youtube.com/watch?v=0I9UO6ONCeI

[tickyul]

Right click on the video area...............what player does the bottom line of the rightclick-box show, HTML5 or Flash??????

Youtube uses HTML5 as the primary video player........if you see Flash on the bottom line of the rightclick-box, that means HTML5 is crashing. What browser are you using.....try using a different browser and see if it plays.