compiz crashed with SIGSEGV in CompWindow::id()

[Pit(er) Ralon]

After updating system this morning, want to start ubuntu desktop ... i see only the original wallpater without any menu, panel oder something else ... after a few seconds crash report is starting

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity 4.8.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-8.10-generic 3.0.1
Uname: Linux 3.0.0-8-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
CrashCounter: 1
Date: Fri Aug 12 11:17:25 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110701)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=de_CH:de
 PATH=(custom, no user)
 LANG=de_CH.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x43c4d0 <_ZN10CompWindow2idEv>: mov 0x58(%rdi),%rax
 PC (0x0043c4d0) ok
 source "0x58(%rdi)" (0x00000058) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 CompWindow::id() ()
 UnityScreen::getWindowPaintList() () from /usr/lib/compiz/libunityshell.so
 CompositeScreen::getWindowPaintList() () from /usr/lib/compiz/libcomposite.so
 DecorWindow::windowNotify(CompWindowNotify) () from /usr/lib/compiz/libdecor.so
 CompWindow::windowNotify(CompWindowNotify) ()
Title: compiz crashed with SIGSEGV in CompWindow::id()
UpgradeStatus: Upgraded to oneiric on 2011-08-11 (1 days ago)
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