I've recently been looking to get a new laptop and one of the things bugging me is that my brother's laptop (A gateway with vista operating system, that's all I know.) shuts off automatically when it becomes warm. This is a problem because whatever was on it that wasn't saved was lost. No warning, nothing. Just shuts off. I want to know if the more recent, windows 7 carrying laptops have this function and, if they do, is there a way to turn it off or to have it removed?