I downloaded LR 2.4 and all my Leaf Aptus 22 files are only shown as jpgs, not the raw files. I reimported the files, but the problem did not go away. I did not have the problem with LR 2.2. I am on OS 10.5.7. Any ideas ?
Ernst

Are you sure that you are importing the correct .MOS files? If so, can you provide an example .MOS file (e.g., via YouSendIt.com) that is showing the problem? LR 2.4 should absolutely be able to read Leaf Aptus 22 files.