Might anyone have any idea why InDesign won't me (a) open, review and close an existing file with no further action, or (b) open, modify and close one after simply saving the modification? In either case it throws up an error message saying "File xx already exists. Do you want to replace it? A file or folder with the same name qlready exists in the folder yy. Replacing it will overwrite its current contents." The choices then are to cancel or replace. What is the point of saying that a file I already have open in front of me "already exists"? Of course it already exists; I'm looking at it — and trying to close it or to save it and then close it. There has to be some way to alter this behaviour, but I'll be hanged if I can find it. I've been all through the preferences options, and hunted through Adobe's forums without finding any reference to it.