So, Ive been using an my old MacBook 2007 charger to charge my MacBook Pro 2011, because the latter one started fraying early on. However, the old charger has been acting up for over a year now, refusing to "connect" (i.e charging and the orange light glowing) unless I sort of kept it pressed to the macbook. As soon as it lit up, it would charge fine. Last week it stopped connecting suddenly, then it would sometimes and sometimes not. Off an on. My question is: Is this a charger issue? Im getting a new one, but some part of me is terrified it could be an issue with the connection at the MacBook-end, i.e the slot being worned... Is that possible? Sort of wanna know before I shill out that insane amount for a new charger. Cheers.