soffice.bin crashed with SIGSEGV in QCoreApplication::notifyInternal()

[Pi 38]

I opened a document then left computer alone a few minutes and when back it had crashed.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: libreoffice-core 1:3.5.0~beta2-2ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-8.15-generic-pae 3.2.0
Uname: Linux 3.2.0-8-generic-pae i686
ApportVersion: 1.90-0ubuntu2
Architecture: i386
Date: Mon Jan 16 12:54:09 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/libreoffice/program/soffice.bin
InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120113)
ProcCmdline: /usr/lib/libreoffice/program/soffice.bin /tmp/Poules\ Ph2\ Saison\ 11-12\ V1.xls --splash-pipe=7
ProcEnviron:
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: libreoffice
StacktraceTop:
 QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
 QObjectPrivate::setParent_helper(QObject*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
 QObject::~QObject() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
 QSocketNotifier::~QSocketNotifier() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
 QSocketNotifier::~QSocketNotifier() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
Title: soffice.bin crashed with SIGSEGV in QCoreApplication::notifyInternal()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[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 #915446, 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.