Hi, i've been testing youtube's html5 beta on my aluminum macbook, 2,4ghz, 2gb ram, nvidia 6400m, OSX 10.5.8 after reading everywhere that it was less resource intensive than flash video, in fact, most of the things i've read said it was a huge performance boost. Nevertheless, after checking activity monitor I get Youtube with html5, around 95.0 CPU usage Youtube with flash video, around 65.0 CPU usage. So, whats the problem with my mac?? why do i get this results when lots of people are saying they get around 15% cpu usage with youtube html5 an safari 4??? I would like to hear some opinions.