I downloaded Mountain Lion 10.8 yesterday and now find I cannot use either Quark Xpress 6.5 or Photoshop CS2, both of which are essential to my work. Both applications have worked perfectly for years and I have not needed to upgrade and therefore out of the upgrading facilities! Both these programs are very expensive - will cost well over £1,000.00 to start again. Has anyone ANY ideas how to overcome this problem, which I need to solve ASAP. Thank you.