I have a fairly new 2TB HDD that is behaving strangely. Sometimes it works but usually not more now. It seems that the data read dies to zero mb / sec just a second after starting a job. If the work is to transfer data it dies quickly, but if it is a film that is playing it will take a little bit longer before it dies and the movie stops. It dies when reading or maybe even writing to disk when becoming loaded. What could this be?