It’s a language object specific item, I believe default can also can be set per theme:

/opt/otrs/Kernel/Output/HTML/Standard/AAABase.dtl

find /opt/otrs -type f -exec egrep '"New message' {} \; -print

however, I would rethink this rename, because Message is not synonym to Ticket.

Message is a new entry in a ticket. Could be confusing.

gr,

Frans

From: otrs-bounces@otrs.org [mailto:otrs-bounces@otrs.org] On Behalf Of Sachin
Sent: dinsdag 21 april 2009 23:58
To: otrs@otrs.org
Subject: [otrs] How to change the text "New message" in the Navigation Barin right corner!!

Somebody please help me to change the text "New message". I want it to display "New Ticket" instead. Which file do i change. I could not find it in sysconfig.