compiz crashed with SIGSEGV in dee_model_get_value()

Compiz crashed when I tried to start Empathy.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: libnux-0.9-0 0.9.32-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
Uname: Linux 2.6.38-6-generic i686
Architecture: i386
Date: Sun Mar 13 18:12:56 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110313)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=de_DE:en
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x14c03c2: mov (%eax),%eax
 PC (0x014c03c2) ok
 source "(%eax)" (0x00000006) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: nux
StacktraceTop:
 ?? () from /usr/lib/libdee-1.0.so.1
 dee_model_get_value () from /usr/lib/libdee-1.0.so.1
 ?? () from /usr/lib/libdee-1.0.so.1
 dee_model_get_string () from /usr/lib/libdee-1.0.so.1
 ?? () from /usr/lib/libdee-1.0.so.1
Title: compiz crashed with SIGSEGV in dee_model_get_value()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (nautilus:1472): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed
 (<unknown>:1449): libindicator-WARNING **: Shortcut Group does not have key 'TargetEnvironment' falling back to deprecated use of 'OnlyShowIn' and 'NotShowIn'.
 (<unknown>:1449): libindicator-WARNING **: Shortcut Group does not have key 'TargetEnvironment' falling back to deprecated use of 'OnlyShowIn' and 'NotShowIn'.
 (gnome-language-selector:1794): Gtk-WARNING **: Attempting to add a widget with type aptdaemon+gtk3widgets+AptProgressDialog to a GtkWindow, but as a GtkBin subclass a GtkWindow can only contain one widget at a time; it already contains a widget of type GtkAlignment
 (nautilus:1472): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed