3 Replies Latest reply: Sep 3, 2012 1:53 PM by JP_FONDU
foreverafter Level 1 Level 1 (0 points)

According to the Activity Monitor QTKitserver-safari web content is using 99% or more of the CPU when watching a video on you tube! Any idea why is this happening? It is very annoying because the computer becomes very slow.

MacBook Pro, Mac OS X (10.7.2)