Thanks BR, and good night (it is lunch time here...)
What I forgot to say is that I am on a Mac, in case it does make a difference.
I am running Mavericks and the latest versions of LO and Calibre.
However, I stress again that IN MY CASE it is not so important to understand why I don't get that string in, because even when the string is indeed in... it doesn't work.
Obviously these are two separate issues.