Unusual sounds from a hard drive are frequently signs of impending failure. If you're a "big newb," then walk it down to BestBuy (assuming you got it in person) and have one of the techs listen to it. If s/he reacts with horror, the drive or laptop can be replaced then and there.
I'm returning the sucker. It was advertised as a long battery life. It's actually less than 3 hrs. I tried to do an SD24 Seagate firmware update, but it is not recognized by the system. The 7 second boot time is nice, but everything else isn't. This baby is going back. Thank you for you reply.