Ubiquity top bar with network and sound applet doesn't display

[Thibault Baldetti]

Binary package hint: ubiquity

Hello
I am testing Ubuntu 11.04 Natty Narwall Desktop i386 in live session. (beta 1)

Hardware:
IBM Thinkpad T60 Laptop
Intel Core Duo
Intel GMA 950
2048 MB of RAM
250 GB of Hard Disk
This computer works flawlessly in Ubuntu 10.10

When I launch the live USB using default options (without typing any button in the first purple boot screen) , the Ubiquity installer display without the top bar with network and sound applet. There are nothing in the top of the screen. It just says "Wireless connections are available"
But when I launch "Try Ubuntu" , Gnome starts normally and the top bar displays.

Thank you!

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: ubiquity 2.5.32
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
Date: Sat Apr 2 06:18:33 2011
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110330)
ProcEnviron:
 LANGUAGE=fr_FR:en
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)