Well DPP saved all the changes I made, and shows them when I reopen the RAW. I can also revert back to the original settings (by moving the sliders back to where they were when I started), so I'm not sure where your problem lies?? A bit more info as to what you did maybe??Try saving the file as something else (jpeg or tiff). I'll have a quick check what DPP does with the saved RAW file and let you know.