UBB.threads PHP Forum Software Community Forums UBB.threads 7 Version 7 Support How do I add a User Name to the emails sent out

I am trying to get it so that the subject line of an email sent out when someone sends a Private Message reads

"Private Message from John"

where John is the person sending the PM

In Language editor, mailer.php, field PMN_SUBJECT I put the following

Private Message from %%FROMNAME%%

but it isn't working.

What might I be doing wrong here?

Thank you.