I have really enjoyed watching and listening to videos on YouTube for many years. But today when I went to the web site I couldn't get any sound when I was trying to listen to Susan Boyle sing. I even tried a Walter Cronkite video and couldn't hear anything. I checked my speakers and they were plugged in and the volume control was 100%. If anyone has any advice on what I should do, please speak up. I downloaded a new version of Adobe Flash Player last night and wonder if that could have caused a problem. I really need to find a way to restore my sound. Any help is greatly appreciated.