Trashed my prefences and caches and the only change I noticed is that "Unlink" changed to "Embed." I certainly have no explanation for why that changed.
Remember, this also happens on another computer that happens to be a PC, and that has just had a fresh installation. In addition, there are definitely others with the same problem. Here are the specs.
- OS X Mountain Lion (happened on previous two operating systems as well) & Windows XP SP3
- ID v8
- no plugins
One other potential peculiarity of my setup is that I use a template file for each issue of my magazine. And it has linked files that we replace with new links. But I don't see how that would make any difference.
Also, if it makes an difference—I can unlink some files, sometimes. I wonder if this happens when two different computers link the same file? Like I said, we transfer the file back and forth.
I do appreciate for your help, regardless.