I can not get edited images from LR5 to plug-in folders like Photoshop 11 and Nik software. I keep getting this alert, "Lightroom was unable to prepare the selected file at /Volumes/Elements/ for editing." Should I save the most recent LR5 catalog settings then uninstall the entire LR5 program after which I would re-install the original Adobe Photoshop Lightroom 4 disc and hope that will bring LR up to speed again. But then how would I get from LR4 to LR5.7 again?