Waa.... my Seagate 7200.11 500Gb suddenly can't be detected. After a year of usage suddenly my bios can't detect it but the HD is power up and running. After searching around, I found out that it is a common problem for this model but I didn't know... What should I do? Can I send back to Seagate to revive it because the label said it is an OEM althought I bought it from retailer. Very important data in that HD