So this is a new MBP(returned it 2 times till i got the right one). So I have a very quiet bedroom, and when I have noticed that the macbook pro 13inch current model makes a click from time to time, it's like once or twice every hour. I was wondering if this is anything I should worry about? Getting another exchange is not an option, I mean I could but I rather not, cause the Apple store folks seem to be getting kind of tired of seeing me. For the Curious: 1st return - Sudden freezes that happened on the second day of purchase! 2nd return - The hinge stuck out on the left side. Current MBP - I am starting to notice the quiet clicks, not sure if I should worry about it. Thanks guys.