9697 Views 4 Replies Latest reply: Mar 11, 2011 4:13 PM by Carolyn Samit
Hi and welcome...
Most YouTube content requires the Flash plugin.
Try the troubleshooting help here.
And try repairing disk permissions.
Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility and restart your Mac. If you see a long list of "messages" in the permissions window, it's ok. As long as you see, "Permissions Repair Complete" when it's finished... you're done.
If you see any warnings re: SUID messages, they can be safely ignored, information here: http://support.apple.com/kb/TS1448?viewlocale=en_US
Restart your Mac.