My new (September) MacBook Pro 2.4 GHz has 10.6.6 installed with 4 gigs of RAM. When I stream live video in both Safari and Chrome, I get audio only (no video) and after a minute or so, the plug-in fails. It happens more quickly in Safari than in Chrome, but both of them crash. So far I updated all software (only iTunes needed an update) and have re-installed Flash (10.1). I reset PRAM (4 or 5 chimes) and even re-installed Safari. All the same. I have only Growl installed as extra system prefs Saved video plays fine. I am hoping that I don't have to re-install the system.