Hey guys, I have a macbook pro, 13 inch, non retina. It's late 2011 and I've been having issues with it ever since. I got the flashing folder and question mark, I took the hard drive out and put it in an external enclosure, it was working until a couple hours ago it won't recognize the hard drive anymore. I had to get on to a school computer to type this up and hopefully it's just the enclosure. I have a new ribbon on the way but it's not going to be here for another month. Any advice on what to do?