Hello folks, I am hoping for some input on this because it drives me crazy. So my girlfriend has an Air 2012 which came with Lion pre - installed. The machine is working absolutely fine on every day basis , doing the common things like , heavy word processing , browsing the internet , youtube videos etc. But some times the machine freezes on netflix after 30 - 40 minutes . This does not happen every time . What I've tried so far. I've clean installed mountain lion and upgrade to the latest version of Silverlight. I tried all the major browsers including Safari , Chrome and Firefox. After that I've visited an Apple store where they run MRI test on it which didn't show anything. They even kept the machine for 2 days and as they told me they run some exhaustive test on it to see if there is anything wrong but still nothing wrong. So what should be the next action I should take? Any ideas?