When I click on battery icon I see two lines with Laptop Battery informations

Binary package hint: gnome-power-manager

1) Ubuntu Natty 11.04

2) gnome-power-manager:
  Installed: 2.32.0-2ubuntu2
  Candidate: 2.32.0-2ubuntu2
  Version table:
 *** 2.32.0-2ubuntu2 0
        500 http://archive.ubuntu.com/ubuntu/ natty/main i386 Packages
        100 /var/lib/dpkg/status

3) I expect to see just one line with the text "Laptop battery 3:40 left", then "Preferences" option.

4) I see two lines containing the text "Laptop battery 3:40 left", then "Preferences" option.
You can see better in the image I attach to this bug report.

N.B: I've an Asus EeePC 1005P and it only have one battery, so displaying two times the text is wrong.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: gnome-power-manager 2.32.0-2ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
Date: Fri Apr 29 19:12:39 2011
EcryptfsInUse: Yes
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
GnomeSessionSuspendInhibited: No
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: ASUSTeK Computer INC. 1005PE
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=it_IT.utf8
 LC_MESSAGES=en_GB.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=b488126d-a680-46c0-b140-adee9ef73465 ro quiet splash acpi_osi=Linux acpi_backlight=vendor vt.handoff=7
SourcePackage: gnome-power-manager
UpgradeStatus: Upgraded to natty on 2011-04-28 (0 days ago)
dmi.bios.date: 03/18/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1003
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 1005P
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer INC.
dmi.chassis.version: x.x
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1003:bd03/18/2010:svnASUSTeKComputerINC.:pn1005PE:pvrx.x:rvnASUSTeKComputerINC.:rn1005P:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x:
dmi.product.name: 1005PE
dmi.product.version: x.x
dmi.sys.vendor: ASUSTeK Computer INC.