I just purchased the Toshiba Satellite A665-S6065. I observed that, when I place the laptop on soft surface and tremble that a little at the same time as listening music, it was creating a few odd noises similar to dzzzzzt. And after that I asked this to to customer service and they said a few of that models does the same. I called a hardware person and he informed me that this is HDD protection and that is normal. Can you tell me that how can I turn off Hard Drive Protection. If you have any idea about this then please share that with us.