just got a new 12" powerbook, loving it so far. Tried plugging in my klipsch promedias to it and found that the headphone jack does not plug in all the way. there's like a very small gap exposing a little of the metal part. is it supposed to be like that or is the plug supposed to be flush against the side of the powerbook? i tried my headphones and the gap is the same thing. just wondering if this is standard. thanks