last night camera raw suddenly stopping saving changes i make to a photo. I open up bridge, then camera raw, then make editing changes to photos such as exposure, and click "save image." Then i enter the save options and save the changed photo. the photo then had the changes permanently saved. but now when i hit "save image" and "done" the photo has the changes made to it, but within a second the photo reverts right back to the original. I actually watch it change back. It will not save the changes. Do I have a box or something checked wrong or missing a check that should be there?