hi, this is my first thread here. i recently bought a new macbook air 11 inch 1.3ghz and straight away noticed that the mac was very slow and got hot when doing very little on it(streaming a sports event) for a brand new apple laptop. i noticed then in activity monitor that when i watched a stream, vimeo or youtube or downloaded via torrent or any other way of downloading that the cpu% of kernel_task would be at least 30% but sometimes(most of the time) around 100%+. after various calls with "genius'" and then reinstalling osx to find it still happened i have been left with the option of repair. i don't want a repair, am i in my right to ask for a total refund? has anyone else had this problem?