I bought my macbook about two months ago. After using it one month my mac did't work anymore. First problem was that it didn't charge. Main problem was that motherboard was broken, this came out in store. So it was replaced. And now it's about month later and same problem. But this time it wont turn on and when I but battery back then cooler will work all the time but computer isn't. Does anyone have this kind of problem or what should I do? When I go back to the store then they again replace motherboard and I think that month later it will be same problem.