Youtube was working fine for me a few days ago. Now, when I play videos they are jumpy and shaky. The audio is fine. I have already tried a software update, flash update, and rebooting. What can I do to fix it?
iMac, Mac OS X (10.7.5)
Open System Preferences > Flash Player then select the Advanced tab.
Click Delete All under Browsing Data and Settings
Not empty the Safari cache.
From your Safari menu bar click Safari > Preferences then select the Advanced tab.
Select: Show Develop menu in menu bar
Now click Develop from the menu bar. From the drop down menu click Empty Caches.
Now try a video.
Youtube video playback is jumpy.
