I bought a new Dell XPS 420 2 months ago - now the hard disk (STM3750630AS) died. I blamed Dell first, before reading this: Seagate has got a firmware problem in most of their hard drives which leads to malfunction. First they tried to deny that this is a common problem but it seems that too many drives died the last weeks. If I would have had the tool yesterday I could have saved my data.
What to do now? If you have got a Seagate drive - I recomend installing the tool immediately.