I've set up Lightroom so that my PS Elements 10 appears as a menu item in the Photo -> Edit In menu.
When I select that option for the selected photo, it begins the process of opening Photoshop Elements 10. PS Elements 10 opens and is functional but there is no open image - it does not load the image selected in Lightroom.
(I'm using LR4.3 and PSE 10.0 on Mac OS X 10.7.5)
What could be wrong?
When I came back to the computer about 10 mins later a dialogue box had appeared saying "Could not complete your request because of a program error."