I was wondering if there was anything i could do about a finicky power cord. sometimes it takes me four tries on the magnetic piece to get it to charge. sometimes the green light comes on but its really faded othertimes it shows green then goes out 15 seconds later instead of charging. I kinda have to play with it to work so i was hoping someone might know if there is a fix or if maybe something is wrong with my macbook pro. its a 2010 model.