package compiz-plugins 1:0.8.6-0ubuntu9.2 failed to install/upgrade: ErrorMessage: pacote compiz-plugins já está instalado e configurado

problem in instalation

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: compiz-plugins 1:0.8.6-0ubuntu9.2
ProcVersionSignature: Ubuntu 2.6.35-30.60-generic 2.6.35.13
Uname: Linux 2.6.35-30-generic i686
Architecture: i386
CompizPlugins: [core,ccp,dbus,place,mousepoll,gnomecompat,move,resize,decoration,png,svg,imgjpeg,text,commands,neg,wall,snap,animation,scale,scaleaddon,expo,staticswitcher,regex,resizeinfo,workarounds,ezoom,vpswitch,fade,session]
Date: Fri Nov 25 13:08:55 2011
ErrorMessage: ErrorMessage: pacote compiz-plugins já está instalado e configurado
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
Lsusb:
 Bus 003 Device 002: ID 1bcf:0007 Sunplus Innovation Technology Inc. Optical Mouse
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 002: ID 0bda:8189 Realtek Semiconductor Corp. RTL8187B Wireless 802.11g 54Mbps Network Adapter
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Positivo Positivo Mobile
PciDisplay: 01:00.0 VGA compatible controller [0300]: Silicon Integrated Systems [SiS] 771/671 PCIE VGA Display Adapter [1039:6351] (rev 10) (prog-if 00 [VGA controller])
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-30-generic root=UUID=75ee509d-7df5-4782-adb3-051475300aaa ro quiet splash
RelatedPackageVersions:
 xserver-xorg 1:7.6+4ubuntu3.1
 libgl1-mesa-glx 7.10.2-0ubuntu2.1
 libdrm2 2.4.23-1ubuntu6
 xserver-xorg-video-intel 2:2.14.0-4ubuntu7.3
 xserver-xorg-video-ati 1:6.14.0-0ubuntu4.1
SourcePackage: compiz
Title: package compiz-plugins 1:0.8.6-0ubuntu9.2 failed to install/upgrade: ErrorMessage: pacote compiz-plugins já está instalado e configurado
XorgConf: Error: [Errno 2] Arquivo ou diretório não encontrado: '/etc/X11/xorg.conf'
dmi.bios.date: 05/01/2009
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.asset.tag: 1234567890
dmi.board.name: M7x0S
dmi.board.vendor: clevo
dmi.board.version: Bottom
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: SiS
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd05/01/2009:svnPositivo:pnPositivoMobile:pvr1.00.13POL_CPT:rvnclevo:rnM7x0S:rvrBottom:cvnSiS:ct1:cvrN/A:
dmi.product.name: Positivo Mobile
dmi.product.version: 1.00.13POL_CPT
dmi.sys.vendor: Positivo
glxinfo: Error: [Errno 2] Arquivo ou diretório não encontrado
system: distro = Ubuntu, architecture = i686, kernel = 2.6.35-30-generic