Anyone else noticed this? It's not noticeable when I'm in public or an office or something but when I'm at home and I don't have music on (very quiet) I hear a squeaking sound when I press the space bar. It only happens when I press the right right of the space bar. My mac is barely one week old. Its not a functional issue but now that I've noticed it, it's really starting to annoy me. You think they could fix it at the store?