Are you happy with Facebook keeping stuff hidden from you?
Watch this video for more information about it.
It seems that some people will have problems in some browsers, with the video being only a black screen and unable to be played. I can't find a resolution to this error that doesn't seem to have a resolution. If you're experiencing this issue, I apologise. Click on the link below to go directly to the video on YouTube itself.
http://www.youtube.com/watch?v=l9ZqXlHl65g