The interior of the magnetic Apple power cord has 5 little prongs. 2 of mine are recessed and I have to bang it on the table to get them to come out from the interior of the plug. Hard to explain, but basically, the most annoying thing I have dealt with. I'm trying to get this fixed. This is my second one that has crapped out, the first started fraying at the end. I take care of my stuff and this is really starting to make me mad. Sometimes it'll take me 20-30 tries to get it to connect and stay connected in order to charge. And...forget about even moving the MB, because even the slightest move makes me lose the connection. I bought this at Best Buy a year ago, maybe a tad more. Best Buy wouldn't do anything for me without a receipt. Understandable. If I go to the Apple store would they be willing to exchange for a new one? Or does anyone have a DIY solution for this? As a multiple Apple product owner this really is disheartening.