What exactly does everyone consider to be a "creak" on the MBA? I just got mine and it doesn't creak when I open or shut the lid, but I notice when I am typing and I press on the right side of the trackpad with my right palm that it sometimes seems to stick and I can hear a click when I lift my palm. I also can reproduce the this by just pressing with one finger both on the area to the right of the trackpad and also on the top right corner near the power button and down the right side. It doesn't always do this, but when it does it is noticeable. Is anyone else experiencing this?