I also tried Firefox. With Firefox Youtube tells me I need to update to the latest version of Adboe Flash Player. This kind of leads me to believe there is an issue with Adobe Flash on my PC. I uninstalled Flash and reinstalled it and I still have the same issue. Also I'm having a problem with my wife's netbook. She has Windows 7 and IE9 and Youtube won't work there either. However I don't get the IE upgrade message on her netbook. I seem to recall a long time ago that a friend of mine had a similar issue with his PC where Youtube didn't work. I recall the fix was he was missing a .dll file that was preventing Adobe Flash from working. Could that be the same issue I'm having?