Photoshop Elements :: Can't Open Application

The Elements 11 Organizer icon in my Applications folder has a circle with a slash through it and when I click on it I get the error 'You can't open the application "Adobe Elements 11 Organizer" because it is not supported on this type of Mac.' The packaging for the software clearly states it is compatible with OS X 10.8 Mountain Lion. I did an uninstall and reinstalled with no other programs running, but still have the same problem. I originally had this software installed on an older Mac Mini running OS X 10.6 Snow Leopard with no problems at all.
 
I am able to open Elements 11 Editor, however, when I try to open a raw file from my Panasonic Lumix LX7 I get the error 'Could not complete your request because the file appears to be from a camera model which is not supported by the installed version of Camera Raw.' Once again, I had no problem opening this file on my Mac Mini and the Lumix LX7 is a supported camera. I am able to open a NEF file from my Nikon D5100, and I am able to open a JPEG file from the Lumix.