This black screen appeared after starting up my pc. I ran my windows repair cd and 'no hard disk' appeared. I checked in my bios and my HD is not showing up. I have checked and reseated the cables with no success. I also extracted my Hd and hooked it up to a USB adapter and it did not show up at all. I hear power to the HD but can't seem to get to the data. I have a years worth of photos on there and need to get it working again. Any suggestions?