Every time I edit a photo and try to save it as a JPG or any other file type, I get a "Could not save the file. File is locked." This is even for content that was pasted into a blank template. The only workaround I have is to copy and paste into Photoshop. I have CS6 -- this was not often a problem from the CS4 I upgraded from. Any ideas what is causing this and how to get the error to stop?