Let me guess Seagate Hard Drive... I had the same problem and was able to fix it. There is a long thread about how to fix it on the internet but you will need some parts to get it going. Coming towards Jasper anytime soon... and is it a Seagate? If it is a seagate go to their website and check if it needs a firmware update....
http://seagate.custkb.com/seagate/cr...p?DocId=207931 . You will need to input the serial number and model number to find out. If it does require the update PM me and I will give you more info towards a possible fix.