Hello, all. What is the safe operational temperature range for the Macbook Air? Not so much with regard to the computer overheating itself, but with regard to where I am while I use it. Can I sit outside in 98 degree weather and use it for three hours? Can I sit outside in 55 degree weather and use it? Or are these temperatures already outside the temperature range to which it may safely be exposed? I would love any detail that anyone could provide about such an operational temperature range. Thanks!