I recently bought a new Toshiba 40gb harddrive for my laptop. A 2.5". I noticed that the performace is extremely disappointing even though it is a 5400rpm drive just like my last one which ran fine. Last night I noticed that when I tilted my laptop a spinning noise was screaming out. It sounded like the platters were scrapping against each other or on sides of the drive. Almost like the sound a cd player makes if you twirl it in your hand. My last drive did not do this either. I notice a huge performance decrease if a have the laptop tilted in my lap. Is it possible that the platters could be loose? Has anyone heard of such a thing?