I have an iMac 2011 using Photoshop CC 2015. Photoshop (only) has recently been crashing. I have plenty of memory and I have gone over any other potential issues with Apple, they can't find a problem with the Mac. I know I cannot update Photoshop to the current version as it is not supported by my system. I think I know the answer...update my Mac, but before I go to such expense I want to be sure this is my only option? I am also paying for a subscription to Adobe for Lightroom and Photoshop which I cannot use, but I cannot find any way to get to talk to anyone from Adobe to get any advice? Any thoughts would be appreciated.