🚀 go-pugleaf

Jean-Joseph,

In all likelihood, this is just indicative of not having all of the
files converted to v.8 format when working at the book level.

The first time you open a book, you will get prompted about opening an
older version FM. The same goes for any of the book component files.
You should use the option to open all files in a book (by holding down
the shift key and select File > Open All Files), deal with the prompts
and then do a shift+File > Save All Files) to ensure that they have
been saved in the FM8 format.

As long as you haven't moved your files in between upgrades, things
should work as before.

Also, there are several patches to FM8 that you should install in
patch order. See:
http://www.adobe.com/support/downloads/product.jsp?product=22&platform=Windows