I just bought a MPB 13" about 2 weeks ago. Since day one I noticed a "tick" or "skip" on the right side of the trackpad. My sister also just got the brand new MBP 13" this past weekend, and her computer is not making the same noise as mine when doing the same motion that seems to be setting this "tick" off on my notebook. Where exactly is the SMS located and what does it sound like? Does this all seem normal to you?