I've upgraded my Macbook Pro from Snow Leopard to Mountain Lion and now I can't run Photoshop CS4 properly. I crashes every time. After upgrading, when I was about to open Photoshop CS4 i was given a notice that in order to open Photoshop I had to install a Java script. Only after installing this I could open Photoshop but now it crashes every time. I've rotated an image, added a layer via copy, used the wand and... CRASH!