I've this macbook for 4 days now. I'm starting to love everything about it even though it has the LG display (which i'm over it). Now the problem is whenever I move my macbook or sometimes rest my right hand on the right side of the macbook, it produces this "krrk" sound. I think I found the source, it comes from the bottom right side however it doesn't produce the creaking noise all the time but it's starting to bug me. I've already talked to the apple sales and they granted me a replacement unit. Has anyone else experienced this? Is this a problem fixable myself or.. it's a manufacturing problem? thanks.