Version:           KNotify: 4.0, KDE: 4.00.83 (KDE 4.0.83 (KDE 4.1 Beta2) "release 4.1" , Qt: 4.4.0  (using KDE 4.0.83)
Installed from:    SuSE RPMs
OS:                Linux

I am on Opensuse 11:
Linux linux-9sa3 2.6.25.5-1.1-pae #1 SMP 2008-06-07 01:55:22 +0200 i686 i686 i386 GNU/Linux
knotify4 --version
Qt: 4.4.0
KDE: 4.00.83 (KDE 4.0.83 (KDE 4.1 Beta2) "release 4.1"
KNotify: 4.0

output from KDE crash handler:
Application: KNotify (knotify4), signal SIGSEGV
[?1034h[Thread debugging using libthread_db enabled]
[New Thread 0xb69ce6d0 (LWP 9512)]
[New Thread 0xafbc2b90 (LWP 11071)]
[New Thread 0xb07efb90 (LWP 11070)]
[New Thread 0xb18beb90 (LWP 11068)]
[New Thread 0xb20bfb90 (LWP 11067)]
[New Thread 0xb2a8db90 (LWP 11066)]
[New Thread 0xb328eb90 (LWP 11065)]
[New Thread 0xb3ad1b90 (LWP 11064)]
[New Thread 0xb42d2b90 (LWP 11060)]
[KCrash handler]
#6  0xb4d3fa5e in ?? () from /usr/lib/libxine.so.1
#7  0xb4d925cb in Phonon::Xine::XineThread::event ()
   from /usr/lib/kde4/phonon_xine.so
#8  0xb73f1ecc in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#9  0xb73f831e in QApplication::notify () from /usr/lib/libQtGui.so.4
#10 0xb6ff706d in KApplication::notify () from /usr/lib/libkdeui.so.5
#11 0xb7ce4b51 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#12 0xb7ce5411 in QCoreApplicationPrivate::sendPostedEvents ()
   from /usr/lib/libQtCore.so.4
#13 0xb7d0d32a in QEventDispatcherUNIX::processEvents ()
   from /usr/lib/libQtCore.so.4
#14 0xb7ce32ca in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#15 0xb7ce348a in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#16 0xb7c07be3 in QThread::exec () from /usr/lib/libQtCore.so.4
#17 0xb4d92318 in Phonon::Xine::XineThread::run ()
   from /usr/lib/kde4/phonon_xine.so
#18 0xb7c0a9b7 in ?? () from /usr/lib/libQtCore.so.4
#19 0xb7bae175 in start_thread () from /lib/libpthread.so.0
#20 0xb6c06dce in clone () from /lib/libc.so.6

Thread 5 (Thread 0xb20bfb90 (LWP 11067)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb7bb1c15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb4d49f78 in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 4 (Thread 0xb18beb90 (LWP 11068)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb7bb1c15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb4d5b858 in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 3 (Thread 0xb07efb90 (LWP 11070)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb7bb1c15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb4d5876c in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 2 (Thread 0xafbc2b90 (LWP 11071)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb7bb1f42 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#2  0xb4d54a7e in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 1 (Thread 0xb69ce6d0 (LWP 9512)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb6bffef1 in select () from /lib/libc.so.6
#2  0xb7d0b8d0 in QEventDispatcherUNIX::select () from /usr/lib/libQtCore.so.4
#3  0xb747bd2b in ?? () from /usr/lib/libQtGui.so.4
#4  0xb7d0c3af in QEventDispatcherUNIXPrivate::doSelect ()
   from /usr/lib/libQtCore.so.4
#5  0xb7d0d391 in QEventDispatcherUNIX::processEvents ()
   from /usr/lib/libQtCore.so.4
#6  0xb747c0a2 in ?? () from /usr/lib/libQtGui.so.4
#7  0xb7ce32ca in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#8  0xb7ce348a in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#9  0xb7ce566d in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#10 0xb73f1d47 in QApplication::exec () from /usr/lib/libQtGui.so.4
#11 0x0804d42d in main ()
#0  0xffffe430 in __kernel_vsyscall ()