I changed the setting last night so the camera would produce the RAW and JPG files of each shot. Previously it seems it was shooting just JPGs which the LR4 previewed and imported without any problem. Now, the preview panel shows a greyed-out square with a notice that preview is not available. If I try to import them, it just wont work. I never had this problem with the ORF files of the EM5. Also, iPhoto was able to preview and import the RAW2 files with no issues. I prefer to use LR (which is up-to-date) to processes the files, but many of the features are not available for JPG format files. What can I do? Is there some work around for this issue? Thanks!