Hi Am new to this site. Anyway i downloaded liquidmac but it wouldnt move. After searching on the internet, i also downloaded seismac, but that said it couldn't find any Sudden Motion Sensors. I looked in terminal and System Profiler and neither of them said anything about a motion sensor. I get no noise when I move my laptop either. I was wondering if this was just my laptop or do 2011 macbook pro's not have a SMS?