I did the steps that apple provided and i still hear clicking In Terminal, which should still be open from the previous step, you can disable the Sudden Motion Sensor by typing sudo pmset -a sms 0 and pressing Return (changing the setting to a zero disables the module). Type your administrator password when you are prompted and press Return. Type the sudo pmset -g command again to be sure that the setting has been applied. When I did the last step... the sms had a 0 next to it. For the record I have a 2011 15'' macbook pro and the reason i want it off is that 1 its annoying and 2 I installed an ssd (smokin fast) With that being said can anyone help me out.. maybe im doing something wrong. Thanks.