I bought it refurbished almost two years ago. For several months it has been occasionally showing the flashing question mark on start up. Usually I will restart it in safeboot and then restart and it's fine. This has gone on for a while. I wasn't sure what that was about and have not been successful in finding information about if that was common and what to do about it. (I have two babies so not a lot of time to spend searching for answers when things aren't dire) It usually seemed that if a disc was left in the notebook and/or the top shut without being properly shutdown before hand, this would happen. Well just a bit ago it was froze on a spinning wheel and I force quit the program it was stuck on and not long after shut it down. Now it won't get past the flashing question mark. I thought it was a startup issue. Now I'm worried it might be a hard-drive issue. My second child's birth video is on there! I know, I should have backed up. I tried Shift on start up and that didn't work. I tried Command+V on start up and that did nothing. I don't have another Mac to hook it up to, just my old trusty PC My main concern is the files like photos, music, and videos on the hard drive. My husband is not working at the moment so we can't spend a lot of money on it and the nearest Mac Genius bar is over an hour away. Looking for some good advice!