Bug#450853: gksudo doesn't prompt for password

[Benoît Tonnerre]

Package: gksu
Version : 2.0.0-4

Hi,
I'm using debian lenny (testing) daily updated.
I'm trying to use gksudo and it seems that it's not working.

First my /etc/sudoers file :
# /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
# See the man page for details on how to write a sudoers file.
#

Defaults env_reset, timestamp_timeout=0
# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root ALL=(ALL) ALL
bevito ALL=(ALL) ALL


when i try this in a terminal : gksudo ls /root
nothing happened. Just a small window named "Droit d'accès" (yes my
system is setup in french, i guess the window is to be called rights
acces or something like that) in the task bar
It disappear a few seconds later but I have to stop the task with "ctrl + c"
when i try in debug mode i get this : gksudo -d ls /root
No ask_pass set, using default!
xauth: /tmp/libgksu-g1X6Md/.Xauthority
STARTUP_ID: gksudo/ls '|root|'/5599-0-SilEighty_TIME3079644208
cmd[0]: /usr/bin/sudo
cmd[1]: -H
cmd[2]: -S
cmd[3]: -p
cmd[4]: GNOME_SUDO_PASS
cmd[5]: -u
cmd[6]: root
cmd[7]: --
cmd[8]: ls
cmd[9]: /root/
buffer: -Mot de passe : -
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brute force GNOME_SUDO_PASS ended...
No password prompt found; we'll assume we don't need a password.

I have to stop the task with "ctrl + c"
I seems that gksudo doesn't prompt me for my password.

If you need any informations please let me know.
Thanks

Benoît