Cannot resolve file, with NTLM auth

Hello,

we’re now using NTLM authentification on RT3.8.8
On user side everything works fine, but in the logs, i have the following
line written four times each time a page is displayed

[Mon Jun 6 11:48:24 2011] [warning]: [Mason] Cannot resolve file to
component: /var/www/error/HTTP_UNAUTHORIZED.html.var (is file outside
component root?) at
/usr/lib/perl5/vendor_perl/5.10.0/HTML/Mason/ApacheHandler.pm line 853.
(/usr/lib/perl5/vendor_perl/5.10.0/HTML/Mason/ApacheHandler.pm:853)

For sure this file is “outside component root” as defined in my rt3.conf :
DocumentRoot /opt/rt3/share/html

May i need to add more options in rt3.conf or modify others in httpd.conf
?

Rapha�l
" Ce courriel et les documents qui lui sont joints peuvent contenir des
informations confidentielles ou ayant un caract�re priv�. S’ils ne vous sont
pas destin�s, nous vous signalons qu’il est strictement interdit de les
divulguer, de les reproduire ou d’en utiliser de quelque mani�re que ce
soit le contenu. Si ce message vous a �t� transmis par erreur, merci d’en
informer l’exp�diteur et de supprimer imm�diatement de votre syst�me
informatique ce courriel ainsi que tous les documents qui y sont attach�s."

" This e-mail and any attached documents may contain confidential or
proprietary information. If you are not the intended recipient, you are
notified that any dissemination, copying of this e-mail and any attachments
thereto or use of their contents by any means whatsoever is strictly
prohibited. If you have received this e-mail in error, please advise the
sender immediately and delete this e-mail and all attached documents
from your computer system."