My macbook air stopped working just a few days ago. whenever I try to turn it on a grey folder with a question mark appears - thats it, freeze. Apparently that means that my mac can't find its system software - well I followed the steps suggested for recovery. didn't work out - disk utility doesn't show me a disk to choose. Im way out of warranty so my questions are: how big is the damage ? (all my data is on that laptop- i'd do anything to save it) can i fix it myself ? (I've read that for a lot of ppl changing the connection "cable" between hdd and the logic board - on older macbook air series- has worked out perfectly. Since I really don't know how the inside of a newer macbook air looks like and if such connection problems still occur- would it work for me?) how much do you guys think it would cost me to get it fixed? PLUS how did this happen? Sorry if I used the tech-lingo wrong. Thanks in advance! I appreciate any help I can get.