Hi guys and girls, After running all my disk utillity's (thechtool, diskwarrior, disk genius etc) the famous HDD seagate rumble was still present. After a clean install the rumble is almost gone! It is reduced from 100% noise till about 15% ( my subjective opinion ;-) This makes me think. Is the rumbling a software issue? Do certain programs make the HD work so much harder that it is very audible all the time? I am going to install all my programs, bit by bit and hope it stays this way. Going back to the apple store..... I do not think it will change anything. I mean so many people got new HDD but still had this problem. I really do not think It is a hardware thing but more a software issue. What do you think?