I just upgraded my Mac OS to Mavericks X, and now Photoshop CS4 will not launch. It does absolutely nothing when I click on it.
As a pro photographer, I NEED this, above all else, to work on my computer!
Try reinstalling from your discs or download a fresh Photoshop Mac CS4 installer.
Download CS4 products
Let me know how it turns out.
Retrieving data ...