I've had some problems with my air, basically since I bought it. After a day or two when I got it, it froze. I didn't think much of it, restarted, and it was all back to normal. Since then, it has been freezing in the same way every now and then. Say, once in every 10-20h of usage. Always in the same way - screen flickering, some static on the speakers, and the computer frozen. A reastart always works and it's as good as new after. This can happen right after I turn it on (I think the record is 30s from a cold start), when it sits idle displaying the desktop with no programs running, when playing games, watching videos and so on - ie no pattern at all. I started noticing it happening regularly after a while, but thought it was some software I had installed that caused it. I finally took some time to reinstall OS X from the memory stick that shipped with the computer. No change. It happened again today, so I recorded a video of it: http://www.youtube.com/watch?v=-8mEv1cf7dA Is the video card broken? Would Apple replace it? Or what could be causing this? Any ideas appreciated.