compiz crashed with SIGSEGV

I copied something from a website to the system clipboard, the system was unresponsive for about 10 secs, the upps-screen and then the "crash report" popped up.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.4+bzr20110407-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic-pae 2.6.38.2
Uname: Linux 2.6.38-8-generic-pae i686
NonfreeKernelModules: fglrx
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
Date: Mon Apr 11 01:50:38 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus: fglrx, 8.840, 2.6.38-8-generic-pae, i686: installed
ExecutablePath: /usr/bin/compiz
GdmLog2:

GraphicsCard:
 ATI Technologies Inc Redwood [Radeon HD 5600 Series] [1002:68c1] (prog-if 00 [VGA controller])
   Subsystem: Sony Corporation Device [104d:9071]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110409)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110409)
JockeyStatus: xorg:fglrx - ATI/AMD: proprietärer FGLRX-Grafiktreiber (Proprietär, Aktiviert, In Benutzung)
MachineType: Sony Corporation VPCEC1C5E
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=de_DE:en
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic-pae root=UUID=eb37499a-4f0d-4d34-9c44-0b2269e7800a ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-8.41-generic-pae 2.6.38.2
Renderer: Unknown
SegvAnalysis:
 Segfault happened at: 0xb5c6f6ef: mov (%esi),%edi
 PC (0xb5c6f6ef) ok
 source "(%esi)" (0xb14fb000) in non-readable VMA region: 0xb14fb000-0xb1500000 ---p None
 destination "%edi" ok
SegvReason: reading VMA None
Signal: 11
SourcePackage: compiz
Stacktrace:
 #0 0xb5c6f6ef in ?? () from /usr/lib/fglrx/dri/fglrx_dri.so
 No symbol table info available.
 Cannot access memory at address 0x20de
StacktraceTop: ?? () from /usr/lib/fglrx/dri/fglrx_dri.so
Title: compiz crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 07/20/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R0300Y8
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR0300Y8:bd07/20/2010:svnSonyCorporation:pnVPCEC1C5E:pvrC60584NA:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCEC1C5E
dmi.product.version: C60584NA
dmi.sys.vendor: Sony Corporation
version.compiz: compiz 1:0.9.4+bzr20110407-0ubuntu2
version.fglrx-installer: fglrx-installer N/A
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.1-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu6