I have recently purchased a new HP Ultrabook Folio1040. After few days of use I noticed I could hear a clicking noise comming from my laptop, this noise you can only hear if the room is silent. any idea ? I have replaced a new Sandisk 256 gb SSD hard drive with 128 ssd. is it normal to hear this sound ? speakers are on mute. but sound only comes when I move my laptop ...when it is on flat surface the sound sometimes stops sometimes keep coming slowly. Thanks in advance.