kbluetooth crashes while quitting (KDE 4.2)

[sputnik]

Bluethooth crashes on my Acer Centrino2 Notebook after hitting the Bluetooth button. This is new for me after the backports update for KDE 4.2

$ apt-cache policy kdebluetooth
kdebluetooth:
  installierte Version: 1:0.3-0ubuntu2~intrepid1~ppa1
  Candidate: 1:0.3-0ubuntu2~intrepid1~ppa1
  Versionstabelle:
 *** 1:0.3-0ubuntu2~intrepid1~ppa1 0
        500 http://ppa.launchpad.net intrepid/main Packages
        100 /var/lib/dpkg/status
     1:0.3-0ubuntu0.2 0
        500 http://de.archive.ubuntu.com intrepid-updates/main Packages
     1:0.2-0ubuntu2 0
        500 http://de.archive.ubuntu.com intrepid/main Packages

Please tell me if you need a better hardware descripton.

As dat lett is de Fehlerspoor nich to bruken.
Dien Programmen sünd wull so buut, dat dat Opstellen vun Fehlsporen nich funkscheneert, oder bi den Afstört is de Befehlstapel (stack frame) schaadhaftig worrn.

(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0xb5fe66c0 (LWP 28200)]
0xb7f21430 in __kernel_vsyscall ()
[Current thread is 0 (process 28200)]

Thread 1 (Thread 0xb5fe66c0 (LWP 28200)):
#0 0xb7f21430 in __kernel_vsyscall ()
#1 0xb66b0f10 in nanosleep () from /lib/tls/i686/cmov/libc.so.6
#2 0xb66b0d4e in sleep () from /lib/tls/i686/cmov/libc.so.6
#3 0xb7b36d72 in KCrash::startDrKonqi (argv=0xbf821a84, argc=17) at /build/buildd/kde4libs-4.2.0/kdeui/util/kcrash.cpp:412
#4 0xb7b37734 in KCrash::defaultCrashHandler (sig=11) at /build/buildd/kde4libs-4.2.0/kdeui/util/kcrash.cpp:337
#5 <signal handler called>
#6 0x03731d8c in ?? ()
#7 0xb73e9156 in ?? () from /usr/lib/libQtDBus.so.4
#8 0xb73e99b1 in ?? () from /usr/lib/libQtDBus.so.4
#9 0xb73e9eaa in ?? () from /usr/lib/libQtDBus.so.4
#10 0xb72ef771 in QObject::event () from /usr/lib/libQtCore.so.4
#11 0xb72df7cb in QCoreApplication::event () from /usr/lib/libQtCore.so.4
#12 0xb69d6206 in QApplication::event () from /usr/lib/libQtGui.so.4
#13 0xb69d08ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#14 0xb69d872e in QApplication::notify () from /usr/lib/libQtGui.so.4
#15 0xb7ac6fed in KApplication::notify (this=0xbf823800, receiver=0xbf823800, event=0x86eaa48) at /build/buildd/kde4libs-4.2.0/kdeui/kernel/kapplication.cpp:307
#16 0xb72dfe61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#17 0xb72e0ae5 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#18 0xb72e0cdd in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4
#19 0xb730a82f in ?? () from /usr/lib/libQtCore.so.4
#20 0xb631d6f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#21 0xb6320da3 in ?? () from /usr/lib/libglib-2.0.so.0
#22 0xb6320f61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#23 0xb730a478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#24 0xb6a6aea5 in ?? () from /usr/lib/libQtGui.so.4
#25 0xb72de52a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#26 0xb72de6ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#27 0xb73ec52b in ?? () from /usr/lib/libQtDBus.so.4
#28 0xb73d6a31 in QDBusConnection::call () from /usr/lib/libQtDBus.so.4
#29 0xb73f5dab in QDBusAbstractInterface::callWithArgumentList () from /usr/lib/libQtDBus.so.4
#30 0xb73f7c5d in QDBusAbstractInterface::call () from /usr/lib/libQtDBus.so.4
#31 0x08066d13 in _start ()
#0 0xb7f21430 in __kernel_vsyscall ()