It's dead. Have them replace it.
For some time, when I switched my external drive on the device remained silent, with only the light as a signal that it was on. After a few minutes I received an error message on the pc screen, and I had to switch the HDD off then on again. At this point it started spinning and everything worked. Now the pc does beep as if it detected a peripheral being attached (after a few minutes, that is), then it beeps again when I switch the HDD off, but nothing happens when I switch it back on: the drive does not spin. What can be done about it?
Thanks a lot.