There is no menu

Hello
There is no menu with Audacity and Ubuntu 12.10 and Gnome 3.6.

ludovic@ubuntu-LDVC:~$ lsb_release -rd
Description: Ubuntu 12.10
Release: 12.10
ludovic@ubuntu-LDVC:~$ apt-cache policy audacity
audacity:
  Installé : 2.0.1-1
  Candidat : 2.0.1-1
  Table de version :
 *** 2.0.1-1 0
        500 http://fr.archive.ubuntu.com/ubuntu/ quantal/universe amd64 Packages
        100 /var/lib/dpkg/status

I expected to run the program with Gnome but there is no menu.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: audacity 2.0.1-1
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
AlsaCards:
 0 [NVidia ]: HDA-Intel - HDA NVidia
                       HDA NVidia at 0xb8000000 irq 20
  1 [U0x46d0x825 ]: USB-Audio - USB Device 0x46d:0x825
                       USB Device 0x46d:0x825 at usb-0000:00:02.1-8, high speed
ApportVersion: 2.6.1-0ubuntu3
Architecture: amd64
Date: Sat Oct 20 12:40:15 2012
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120822.4)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: audacity
UpgradeStatus: Upgraded to quantal on 2012-10-20 (0 days ago)