I see that this has been posted before

But dont see that there was any resolution

Indesign doesnt always show the current changes to links or indicate a link has changed nor can you delete and replace the graphic

We have to do a a save as to a different name then replace graphic

This only happens once in a while. But once in awhile and get to press is to much. Saw this in a Indesign CS2 document with illustrator link. Indesign CS3 duplicated problem with same files