synergys assert failure: synergys: /build/buildd/synergy-1.3.6/lib/arch/CArchMultithreadPosix.cpp:289: virtual void CArchMultithreadPosix::closeMutex(CArchMutexImpl*): Assertion `status == 0' failed.

When I use ("share") synergy on the desktop (controlling the notebook beside), then turn off the notebook and log out of the desktop, next time I log in the desktop (gnome-session), login takes longer than usual, and when I see the usual session screen, I also get this apport notification. Presumably synergy server handles logout/login improperly.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: synergy 1.3.6-1ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-11.49-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
Architecture: amd64
AssertionMessage: synergys: /build/buildd/synergy-1.3.6/lib/arch/CArchMultithreadPosix.cpp:289: virtual void CArchMultithreadPosix::closeMutex(CArchMutexImpl*): Assertion `status == 0' failed.
CrashCounter: 1
Date: Mon Sep 5 00:39:27 2011
ExecutablePath: /usr/bin/synergys
ProcCmdline: /usr/bin/synergys -f --config .quicksynergy/synergy.conf
ProcEnviron:
 LANGUAGE=en_US:en
 LC_CTYPE=ru_RU.UTF-8
 LC_COLLATE=ru_RU.UTF-8
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: synergy
StacktraceTop:
 raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
 abort () at abort.c:92
 __assert_fail (assertion=0x4a2e16 "status == 0", file=<value optimized out>, line=289, function=<value optimized out>) at assert.c:81
 CArchMultithreadPosix::closeMutex(CArchMutexImpl*) ()
 CXWindowsEventQueueBuffer::~CXWindowsEventQueueBuffer() ()
Title: synergys assert failure: synergys: /build/buildd/synergy-1.3.6/lib/arch/CArchMultithreadPosix.cpp:289: virtual void CArchMultithreadPosix::closeMutex(CArchMutexImpl*): Assertion `status == 0' failed.
UpgradeStatus: Upgraded to natty on 2011-05-12 (115 days ago)
UserGroups: adm admin audio cdrom dialout lpadmin plugdev sambashare video
XsessionErrors:
 (evolution-alarm-notify:14205): libecal-WARNING **: gdbus_cal_disconnect: Failed to close calendar, GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface `org.gnome.evolution.dataserver.calendar.Cal' on object at path /org/gnome/evolution/dataserver/calendar/14249/1
 (evolution-alarm-notify:14205): libecal-WARNING **: gdbus_cal_disconnect: Failed to close calendar, GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface `org.gnome.evolution.dataserver.calendar.Cal' on object at path /org/gnome/evolution/dataserver/calendar/14249/2
 (evolution-alarm-notify:14205): libecal-WARNING **: gdbus_cal_disconnect: Failed to close calendar, GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface `org.gnome.evolution.dataserver.calendar.Cal' on object at path /org/gnome/evolution/dataserver/calendar/14249/3
 (evolution-alarm-notify:14205): libecal-WARNING **: gdbus_cal_disconnect: Failed to close calendar, GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface `org.gnome.evolution.dataserver.calendar.Cal' on object at path /org/gnome/evolution/dataserver/calendar/14249/4
 (evolution-alarm-notify:14205): libecal-WARNING **: gdbus_cal_disconnect: Failed to close calendar, GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface `org.gnome.evolution.dataserver.calendar.Cal' on object at path /org/gnome/evolution/dataserver/calendar/14249/5