Distortion in Unity Launcher during U1 file sync

Binary package hint: unity

1). Launch U1

2). Sync a folder / file

3). Hover the unity launcher and observed distortion (see screenshot)

4). Distortion disappears after file sync

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.6.4-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
Uname: Linux 2.6.38-6-generic x86_64
NonfreeKernelModules: wl
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,move,imgpng,vpswitch,resize,mousepoll,grid,gnomecompat,regex,place,animation,wall,session,workarounds,wobbly,expo,ezoom,staticswitcher,fade,scale,unityshell]
CompositorRunning: compiz
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1366x768
 edid-base64: AP///////wBMo1E2AAAAAAASAQOAIhN4Cof1lFdPjCcnUFQAAAABAQEBAQEBAQEBAQEBAQEBEhtWclAADDAwICUAWMIQAAAZAAAADwAAAAAAAAAAAB60AnQAAAAA/gBTQU1TVU5HCiAgICAgAAAA/gAxNTZBVDA1LUgwMQogABU=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Sun Mar 13 15:09:25 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 5.100.82.38+bdcom, 2.6.38-4-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 2.6.38-5-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 2.6.38-6-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 2.6.38-2-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 2.6.38-3-generic, x86_64: installed
GraphicsCard:
 Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:3658]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110120)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110120)
InstallationMedia__: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110120)
MachineType: Hewlett-Packard HP Pavilion dv6 Notebook PC
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-6-generic root=UUID=6f9941d1-c5f9-414c-a80f-bed1dc13ff8c ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
ProcVersionSignature__: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
Renderer: Unknown
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/06/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.17
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 3658
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 32.24
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.17:bd02/06/2010:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvr049D210000241210000020000:rvnHewlett-Packard:rn3658:rvr32.24:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: HP Pavilion dv6 Notebook PC
dmi.product.version: 049D210000241210000020000
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.4-0ubuntu4
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu5