Hello! New switcher here who just got her new lovely 17" MBP (so far so good!). One question I have had though is about the power brick? With the MBP there is an extender with a longer cord that comes with it. When I take off the initial "prongs?" (the part that actually goes in the outlet) and try to place the extender part in it's like the extender doesn't fit. The initial smaller cord with the mag safe goes on and off rather easily but the extender I have tried forcing it but was afraid if I put more force on it I might brake it. I also noticed that the brick at two corners has little 'wings' that can be pulled up, what are those for? Just wondering before I make a trip to the apple store, is there a button I missed or trick I don't know to getting the extender to slide on without so much force??? Thanks in advance!!!