My friend's MacBook Air randomly freezes completely. Even if I close the lid the screen is still open. When the crash occurred, I was testing Sauerbraten with the settings on maximum. Though, it probably isn't heat related because the freeze occurred 30 seconds after I launched Sauerbraten. Also, I checked in the crash log, and the last thing the computer said before booting (after the crash, of course): "11-10-21 20:27:59,382 loginwindow: Application hardKill returned -600" Anyone knows what the problem is ? Thanks !