Version:           0.12.4 (using KDE KDE 3.5.6)
Installed from:    Gentoo Packages
Compiler:          gcc-Version 4.1.1 (Gentoo 4.1.1-r3) CFLAGS="-ggdb -O2 -march=nocona -msse3 -pipe -fomit-frame-pointer -fvar-tracking"
OS:                Linux

Kopete crashed while it was in background.
Accounts which were online:
IRC (2 channels open)
ICQ (1 account)
Jabber (2 accounts)

Hope the backtrace helps:

Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1241368912 (LWP 3982)]
[KCrash handler]
#9  0x00000029 in ?? ()
#10 0xb5630b71 in IRCUserContact::updateStatus (this=0x83786f0)
    at ircusercontact.cpp:141
#11 0xb560ce98 in IRCAccount::engineStatusChanged (this=0x8332b68, 
    newStatus=KIRC::Engine::Disconnected) at ircaccount.cpp:512
#12 0xb560f3fc in IRCAccount::qt_invoke (this=0x8332b68, _id=41, 
    _o=0xbff42cf4) at ircaccount.moc:249
#13 0xb68dce74 in QObject::activate_signal () from /usr/qt/3/lib/libqt-mt.so.3
#14 0xb564a517 in KIRC::Engine::statusChanged (this=0x8332d40, 
    t0=KIRC::Engine::Disconnected) at kircengine.moc:1301
#15 0xb564a560 in KIRC::Engine::setStatus (this=0x8332d40, status=135306464)
    at kircengine.cpp:145
#16 0xb564a65b in KIRC::Engine::slotConnectionClosed (this=0x8332d40)
    at kircengine.cpp:219
#17 0xb56511d1 in KIRC::Engine::qt_invoke (this=0x8332d40, _id=68, 
    _o=0xbff42f14) at kircengine.moc:2031
#18 0xb68dcf0e in QObject::activate_signal () from /usr/qt/3/lib/libqt-mt.so.3
#19 0xb68dd962 in QObject::activate_signal () from /usr/qt/3/lib/libqt-mt.so.3
#20 0xb6f9f39c in KBufferedIO::closed (this=0x839a090, t0=0)
    at kbufferedio.moc:96
#21 0xb6f9958a in KExtendedSocket::close (this=0x839a090) at kextsock.cpp:1289
#22 0xb564a594 in KIRC::Engine::setStatus (this=0x8332d40, 
    status=KIRC::Engine::Closing) at kircengine.cpp:170
#23 0xb56524dc in KIRC::Engine::quit (this=0x8332d40, reason=@0xbff42fec)
    at kircengine_commands.cpp:204
#24 0xb560f907 in ~IRCAccount (this=0x8332b68) at ircaccount.cpp:219
#25 0xb7ea0dca in ~Protocol (this=0x837c738) at kopeteprotocol.cpp:73
#26 0xb562130f in ~IRCProtocol (this=0x837c738) at ircprotocol.cpp:314
#27 0xb7eab7b8 in ~PluginManager (this=0x8272a70)
    at kopetepluginmanager.cpp:116
#28 0xb7ea8acd in __tcf_0 () at /usr/kde/3.5/include/kstaticdeleter.h:126
#29 0xb616229c in __cxa_finalize () from /lib/libc.so.6
#30 0xb7e95a7b in __do_global_dtors_aux ()
   from /usr/kde/3.5/lib/libkopete.so.1
#31 0xb7f1d958 in _fini () from /usr/kde/3.5/lib/libkopete.so.1
#32 0xb7f7af48 in _dl_fini () from /lib/ld-linux.so.2
#33 0xb6161fdf in exit () from /lib/libc.so.6
#34 0xb6815bf8 in ?? () from /usr/qt/3/lib/libqt-mt.so.3
#35 0x00000001 in ?? ()
#36 0x0810b760 in ?? ()
#37 0x0811ba70 in ?? ()
#38 0xb6edef3e in KApplication::shutDown (this=0x811ba70)
    at kapplication.moc:234
#39 0xb6edfb5b in KApplication::xioErrhandler (this=0xb6d11610, dpy=0x811ba70)
    at kapplication.cpp:728
#40 0xb6edfb86 in kde_xio_errhandler (dpy=0x811ba70) at kapplication.cpp:179
#41 0xb63ac07b in _XIOError () from /usr/lib/libX11.so.6
#42 0xb63ac056 in _XIOError () from /usr/lib/libX11.so.6
#43 0xb63acfb4 in _XRead () from /usr/lib/libX11.so.6
#44 0xbff433a8 in ?? ()
#45 0xb61e8201 in poll () from /lib/libc.so.6
Backtrace stopped: previous frame inner to this frame (corrupt stack?)