1920 Views 4 Replies Latest reply: Jan 11, 2011 4:00 PM by MacDenney
Follow the instructions here for troubleshooting Flash which is required for most YouTube content.
Click here: http://www.adobe.com/support/flashplayer/
Then click: Troubleshoot Flash Player | Mac OS
Carolyn, I tried playing the YouTube movie logged into my guest account and it worked perfectly.
Logged into my account, I noticed that the movie opened full screen (although it wouldn't play); whereas in the guest account version it opened within the YouTube site. I don't know if that is any help or not.