Flash Player box won't go away

I go to a video (Americas Cup sail racing) and a box pops up saying:
"Adobe Flash Player Settings
Local Storage
I.yimg.com is requesting permission to store information on your computer.
Requested: up to 10 KB
Currently Used: 0KB"
and 2 boxes - Allow and Deny.

I can't find a way to remove it from in front of the video that Plays.
Mike