How can i add a session for kde3 on gdm 2.4 session menu ? (sorry something wrong with my isp's smtp service , so i send again)

[damon]

Hi , I've got FreeBSD 5.1 current with gnome 2.4 install and gdm2 runing 
well without any problem , but when I try to add a new session for newly 
install kde 3.1.4 , it's sees a little trouble for me

freebsd[/usr/X11R6/etc/gdm]-damon->uname -a
FreeBSD freebsd.damon.idv.tw 5.1-CURRENT FreeBSD 5.1-CURRENT #4: Sun Sep 28 
12:49:04 CST 2003     damon at freebsd.damon.idv.tw:/usr/obj/usr/src/sys/damon  
i386


freebsd[/var/db/pkg]-damon->pkg_info gdm2-2.4.4.3/
Information for gdm2-2.4.4.3:

Comment:
GNOME 2 version of xdm display manager


Required by:
gnome2-2.4.0


Description:
The GNOME 2.0 version of the xdm display manager. It has support for
face pixmaps, multiple sessions plus clean shutdowns from the login
menu.


but when i try to add a new session file in /usr/X11R6/etc/gdm/Sessions/ 
, i try to add new file KDE with 

freebsd[/usr/X11R6/etc/gdm/Sessions]-damon->cat KDE
exec kde3

freebsd[/usr/X11R6/etc/gdm/Sessions]-damon->ls -la KDE
-rwxr-xr-x  1 gdm  gdm  11  9 30 22:35 KDE
but when i reboot , still nothing change for the gdm session menu :( , 
and i add a little dirty modification for /etc/profile so than i can using 
the l10n interface gdm and gnome

freebsd[/etc]-damon->cat profile
# $FreeBSD: src/etc/profile,v 1.13 2000/07/27 11:39:33 asmodai Exp $
#
# System-wide .profile file for sh(1).
#
# Uncomment this to give you the default 4.2 behavior, where disk
# information is shown in K-Blocks
# BLOCKSIZE=K; export BLOCKSIZE
#
# For the setting of languages and character sets please see
# login.conf(5) and in particular the charset and lang options.
# For full locales list check /usr/share/locale/*
# You should also read the setlocale(3) man page for information
# on how to achieve more precise control of locale settings.
#
# Read system messages
# msgs -f
# Allow terminal messages
# mesg y
export LC_ALL=zh_TW.Big5
export LANG=zh_TW.Big5
export XMODIFIERS="@im=xcin"
exec /usr/X11R6/bin/xcin2.5 &


gdm startu with /usr/X11R6/etc/rc.d/gdm.sh which come 
with /usr/ports/x11/gdm2/ gdm.sh.sample

did i doing anything wrong ?

thank you for reading

damon