compiz crashed with SIGSEGV in sigc::internal::signal_emit0<void, sigc::nil>::emit()

[Julia Lopareva]

please help

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: libnux-0.9-0 0.9.30-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic i686
Architecture: i386
Date: Wed Mar 9 18:43:42 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
ProcCmdline: compiz --replace
ProcEnviron:
 SHELL=/bin/bash
 LANG=ru_RU.UTF-8
 LANGUAGE=ru_RU:en
Signal: 11
SourcePackage: nux
StacktraceTop:
 sigc::internal::signal_emit0<void, sigc::nil>::emit(sigc::internal::signal_impl*) () from /usr/lib/compiz/libunityshell.so
 Launcher::EventLogic() () from /usr/lib/compiz/libunityshell.so
 Launcher::DrawContent(nux::GraphicsEngine&, bool) () from /usr/lib/compiz/libunityshell.so
 nux::View::ProcessDraw(nux::GraphicsEngine&, bool) () from /usr/lib/libnux-0.9.so.0
 nux::Layout::ProcessDraw(nux::GraphicsEngine&, bool) () from /usr/lib/libnux-0.9.so.0
Title: compiz crashed with SIGSEGV in sigc::internal::signal_emit0<void, sigc::nil>::emit()
UpgradeStatus: Upgraded to natty on 2011-03-09 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 sigc::internal::signal_emit0<void, sigc::nil>::emit (impl=0x97a0090) at /usr/include/sigc++-2.0/sigc++/signal.h:776
 emit (this=0x8e41040) at /usr/include/sigc++-2.0/sigc++/signal.h:2671
 Launcher::EventLogic (this=0x8e41040) at /build/buildd/unity-3.6.2/src/Launcher.cpp:2844
 Launcher::DrawContent (this=0x8e41040, GfxContext=..., force_draw=false) at /build/buildd/unity-3.6.2/src/Launcher.cpp:2400
 nux::View::ProcessDraw (this=0x8e4104c, GfxContext=..., force_draw=false) at ./View.cpp:259