[Koha] Email overdue notice info not displaying

[Emrys Minnig]

When our patrons receive an overdue notice, neither <<biblio.title>> nor <<biblio.author>> are showing up, though <<borrowers.firstname>> and <<borrowers.lastname>> are.
 
For example, our message template is:
 
Dear <<borrowers.firstname>> <<borrowers.surname>>,
According to our records, you have items that are overdue.  Varndean Library does not charge late fines, but please return or renew them as soon as possible.
 
<<biblio.title>> by <<biblio.author>>
 
Do not reply directly to this email.  If you wish to email your librarians, please send an email to 'TheLibrary'.
Thanks!
 
What is actually received is:
 
Dear Emrys Minnig,
According to our records, you have items that are overdue.  Varndean Library does not charge late fines, but please return or renew them as soon as possible.
 
 by 
 
Do not reply directly to this email.  If you wish to email your librarians, please send an email to 'TheLibrary'.
Thanks!

I am using Koha 3.00.02.012 on Debian Etch, using qmail instead of the standard sendmail.  Anyone have an idea why elements are able to be pulled from the 'borrowers' table but not the 'biblio' table?

 

Emrys