When I try and launch the photo editor, it crashes with a large window appearing full of text, with a message that this is being sent to apple.
I have deleted the app and re-installed, but to no avail. Not sure what to try next.
Are you on Yosemite or El Capitan?
When did you last go to the Disk Utility and run a disc verification on your hard drive?
Also, run a font check. Quite often a corrupt font on a Mac can screw up Photoshop Elements and Premiere Elements.
Retrieving data ...