My MacBook Air 2008 (A1304) hard drive had given up, so I purchased the exact same hard drive they come with standard - Samsung HS12UHE/A. I believe that I had put the new HD in as how I took the existing out, but I am having some problems with the boot. When started, the MBA comes up with a flashing folder with a ? in the middle. I then turned it off, and started again holding down 'option' and all that comes up is the WiFi section (I believe that hard drives are suppose to come up that the MBA recognises). I am thinking that I have not connected the HD correctly - I have included some photos. If anyone has any clues as to what I am doing incorrectly, or have had similar problems, please help me out! I have included some photos of how I have connected it up. Thanks.