In the past I've had no issues opening RAW files in Photoshop. Then about last month, or so, when I tried to open (Canon .CR2 from 5D Mark II) RAW files in Photoshop CC 2015 it would take about 5 minutes for it to open the file in Adobe Camera RAW. Now if I even just click to select a RAW file in the Open dialog box Photoshop freezes completely. I'm running Windows 7, haven't added any new software or hardware. No past problems...I can't find any info on what's going on. Help!!!