notify-osd sometimes appear badly

[Bence Lukács]

Sometimes when I try to umount drives (for example pendrive) by drop them on the Trash icon on the launcher, the notification appear badly. On the attached photo, you can see how.
It's weird, because sometimes it works perfectly: http://noob.hu/2012/02/28/notifyOSD-good.png

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: notify-osd 0.9.33-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic-pae 3.2.6
Uname: Linux 3.2.0-17-generic-pae i686
ApportVersion: 1.93-0ubuntu2
Architecture: i386
Date: Tue Feb 28 12:32:33 2012
GtkTheme: Ambiance
IconTheme: ubuntu-mono-dark
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120201.1)
MachineType: Acer Extensa 5235
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=hu_HU.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-17-generic-pae root=UUID=5b2cd82c-58ab-45e6-9719-02f98b6c857b ro quiet splash acpi_backlight=vendor vt.handoff=7
RelatedPackageVersions:
 xserver-xorg 1:7.6+10ubuntu1
 libgl1-mesa-glx 8.0.1-0ubuntu2
 libdrm2 2.4.30-1ubuntu1
 xserver-xorg-video-intel 2:2.17.0-1ubuntu4
 xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
SourcePackage: notify-osd
UpgradeStatus: No upgrade log present (probably fresh install)
WindowManager: No value set for `/desktop/gnome/session/required_components/windowmanager'
dmi.bios.date: 06/09/2009
dmi.bios.vendor: Phoenix
dmi.bios.version: V0.3216
dmi.board.name: BA50-MV
dmi.board.vendor: Acer
dmi.board.version: Not Applicable
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenix:bvrV0.3216:bd06/09/2009:svnAcer:pnExtensa5235:pvrNotApplicable:rvnAcer:rnBA50-MV:rvrNotApplicable:cvnAcer:ct10:cvrN/A:
dmi.product.name: Extensa 5235
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer
glxinfo: Error: [Errno 2] Nincs ilyen fájl vagy könyvtár
setxkbmap:
 Error: command ['xkbcomp', ':0', '-w0', '-'] failed with exit code 1: Error: Cannot open display ":0"
                   Exiting