After performing an Archive and Install installation of Mac OS X 10.3 or 10.4, you might not be able to open an image file by dragging and dropping it onto an Adobe Photoshop icon, nor open a Photoshop file by double-clicking it (Photoshop opens, but the file does not). Using the Finder's Contextual menu choice "Open With" on a file to open it in Photoshop may not work either.
As a workaround, open the file(s) by choosing Open from the Photoshop File menu.
For more information and solutions, see Adobe support document 329996.
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