Suddenly the lion became crawling tonight and the mbp cpu fan was 'shouting', i struggled to open the activity monitor and found out that the distnoted process was taking all the cpu time. After I killed the distnoted, the system calmed down and then the distnoed appeared again but it was then harmonic. It has happened twicely. I don't know how to avoid this, I had thought the macbook pro does not have a cpu fan before this. What is the matter? Thanks.