gnome-shell unicode problem

I am using a fresh ubuntu install, I just did apt-get install gnome gnome-shell and tried to start it but it throws the error

Clutter-CRITICAL **: clutter_actor_set_text_direction: assertion `text_dir != CLUTTER_TEXT_DIRECTION_DEFAULT' failed
    JS ERROR: !!! Exception was: Error: Failed to convert UTF-8 string to JS string: Sequência de bytes inválida na entrada de conversão
    JS ERROR: !!! lineNumber = '0'
    JS ERROR: !!! fileName = '"gjs_throw"'
    JS ERROR: !!! stack = '"("Failed to convert UTF-8 string to JS string: Sequ\xEAncia de bytes inv\xE1lida na entrada de convers\xE3o")@gjs_throw:0
("%A, %e de %B de %Y")@/usr/share/gnome-shell/js/ui/environment.js:75
()@/usr/share/gnome-shell/js/ui/dateMenu.js:214
([object Object])@/usr/share/gnome-shell/js/ui/dateMenu.js:167
DateMenuButton([object Object])@/usr/share/gnome-shell/js/ui/dateMenu.js:44
()@/usr/share/gnome-shell/js/ui/panel.js:948
Panel()@/usr/share/gnome-shell/js/ui/panel.js:887
start()@/usr/share/gnome-shell/js/ui/main.js:213
@<main>:1
"'
    JS ERROR: !!! message = '"Failed to convert UTF-8 string to JS string: Sequência de bytes inválida na entrada de conversão"'
Aviso do gerenciador de janelas: Log level 32: Execution of main.js threw exception: Error: Failed to convert UTF-8 string to JS
string: Sequência de bytes inválida na entrada de conversão

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-shell 3.2.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-14.23-generic-pae 3.0.9
Uname: Linux 3.0.0-14-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Tue Dec 20 21:05:04 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcEnviron:
 PATH=(custom, no user)
 SHELL=/bin/bash
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

Note about unicode problem: this only happen with pt_br locale iso