Comment 0 for bug 1090774

See attached screenshots. Each screenshot has a descriptive file name.
I'm not entirely sure when it happened, but it coincided with me resizing the window.

I'm on ubuntu 12.04.01 64 bit. The problem occured 04 Nov 2012. My system was up to date.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.18.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-34.53-generic 3.2.33
Uname: Linux 3.2.0-34-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.0.1-0ubuntu15
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Sat Dec 15 19:26:45 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation Ivy Bridge Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: CLEVO/KAPOK Computer Device [1558:0240]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: System76, Inc. Lemur Ultra
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_AG:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_AG
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-34-generic root=UUID=96551326-e461-4071-ab9c-0e81ad7015d7 ro quiet splash acpi_os_name=Linux acpi_osi= vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/25/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.5
dmi.board.asset.tag: Tag 12345
dmi.board.name: Lemur Ultra
dmi.board.vendor: System76, Inc.
dmi.board.version: lemu4
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd06/25/2012:svnSystem76,Inc.:pnLemurUltra:pvrlemu4:rvnSystem76,Inc.:rnLemurUltra:rvrlemu4:cvnNoEnclosure:ct10:cvrN/A:
dmi.product.name: Lemur Ultra
dmi.product.version: lemu4
dmi.sys.vendor: System76, Inc.
version.compiz: compiz 1:0.9.7.8+bzr3121-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu36
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-0ubuntu0.2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-0ubuntu0.2
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.8
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2