I bought a Seagate HD about 2-3 months ago, and it's starting to report bad sectors in the last 2 weeks. I've reformatted twice, and used the Seagate Tools to repair errors on it, but it keeps happening. I bought the drive as new off some online market place, but the seller is not responding to my emails. It came in a sealed wrapper and everything, but there are no warranty papers included. Question: Do new HD's have a certain period of manufacturer's warranty, under which i might be able to return it to Seagate ?