Un Internet Blockers Problems Viewing Video Clips From Yahoo?

Problems Viewing Video Clips from Yahoo? - un internet blockers

I look at the United Nations in a position to video clips from Yahoo news, sports, etc., in IE7 or Firefox2. I disabled the blocking of pop-ups. I updated Windows Media Player 11, Flash 9 disabled Norton Internet Security 2006. I tried everything I could think of, someone has suggestions!