Hi, I just received my new MBA with the upgraded 8GB ram. It was like love a first sight , although I did notice a slight discomfort. The bottom left corner (the black sphere) is raised a bit high, and does not sit flat on a table. When I'm typing (like right now), it shifts slightly up and down. My question is: will Apple fix this in store? I really don't want a replacement, especially because I live in China and it's not available yet.