3 Replies Latest reply on Aug 19, 2014 11:08 PM by ssprengel

    Installing and Opening LR5 on MacBookPro


      I've been using Lightroom 4 on a MacBookPro for several years and two days ago purchased Lightroom 5.  When I try to open LR5, its opening logo just flashes for a brief instant and then nothing happens.  Puzzled on what I must do next? Help?