Xorg crashed with SIGABRT

[Psyco]

Submenus on ubunto classic no effects do not open, just flicker.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: xserver-xorg-core 2:1.11.4-0ubuntu6
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic i686
.tmp.unity.support.test.0:

ApportVersion: 1.94.1-0ubuntu2
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Fri Mar 16 18:29:09 2012
DistUpgraded: Log time: 2012-03-05 00:02:04.607045
DistroCodename: precise
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation N10 Family Integrated Graphics Controller [8086:a011] (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] Device [1025:0349]
   Subsystem: Acer Incorporated [ALI] Device [1025:0349]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20111129.1)
MachineType: eMachines eM355
ProcCmdline: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic root=UUID=5ac15d83-3fab-43e5-94b4-d8f6f11ada79 ro quiet splash vt.handoff=7
Signal: 6
SourcePackage: xorg-server
Stacktrace:
 #0 0x00d69416 in __kernel_vsyscall ()
 No symbol table info available.
 Cannot access memory at address 0xbfd40c30
StacktraceTop:

ThreadStacktrace:
 .
 Thread 1 (Thread 0xb7718a40 (LWP 4463)):
 #0 0x00d69416 in __kernel_vsyscall ()
 No symbol table info available.
 Cannot access memory at address 0xbfd40c30
Title: Xorg crashed with SIGABRT
UpgradeStatus: Upgraded to precise on 2012-03-12 (4 days ago)
UserGroups:

dmi.bios.date: 02/15/2011
dmi.bios.vendor: eMachines
dmi.bios.version: V3.15(DDR3)
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: HM02_PT
dmi.board.vendor: eMachines
dmi.board.version: V3.15(DDR3)
dmi.chassis.type: 10
dmi.chassis.vendor: eMachines
dmi.chassis.version: V3.15(DDR3)
dmi.modalias: dmi:bvneMachines:bvrV3.15(DDR3):bd02/15/2011:svneMachines:pneM355:pvrV3.15(DDR3):rvneMachines:rnHM02_PT:rvrV3.15(DDR3):cvneMachines:ct10:cvrV3.15(DDR3):
dmi.product.name: eM355
dmi.product.version: V3.15(DDR3)
dmi.sys.vendor: eMachines
version.compiz: compiz 1:0.9.7.0+bzr3035-0ubuntu1
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
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
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #943880, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.