Hi. I have Adobe InDesign CS5. I upgraded my MacBook Air's operation system to Yosemite(big mistake) and now my InDesign files wont open. I am prompted to install Java SE 6 which I have done all to no avail. I then tried to reinstall InDesign again and that did nothing. What do I have to do or purchase to be use my old InDesign CS5 files? Help!!!!