Version:            (using KDE 4.3.4)
OS:                Linux
Installed from:    openSUSE RPMs

Procedure:

1) Right click over the desktop and then click on Desktop settings
2) Click in Get new walpapers button
3) Go to the desktop without closing the opened windows (Desktop Settings and Walpaper)
4) Again Right click over the desktop and then Desktop settings
5) Again Click in Get new walpapers button
6) Plasma Crash, and restars.

Im using Opensuse 11.2 with KDE 4.3.4 and Qt 4.5.3

Backtrace:

Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb56aa700 (LWP 12762))]

Thread 3 (Thread 0xa8558b70 (LWP 12765)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb754fd95 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb75af750 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb5cf8a04 in ?? () from /usr/lib/libQtNetwork.so.4
#4  0xb75ae623 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb754b6e5 in start_thread () from /lib/libpthread.so.0
#6  0xb754b600 in ?? () from /lib/libpthread.so.0

Thread 2 (Thread 0xa71d8b70 (LWP 13058)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb75500c2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb75af6dc in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb75a4bc2 in ?? () from /usr/lib/libQtCore.so.4
#4  0xb75ae623 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb754b6e5 in start_thread () from /lib/libpthread.so.0
#6  0xb754b600 in ?? () from /lib/libpthread.so.0

Thread 1 (Thread 0xb56aa700 (LWP 12762)):
[KCrash Handler]
#6  0xb532d52e in KNS::Engine::downloadDialogModal(QWidget*) () from /usr/lib/libknewstuff2.so.4
#7  0xa8dda997 in ?? () from /usr/lib/kde4/plasma_wallpaper_image.so
#8  0xa8dddecc in ?? () from /usr/lib/kde4/plasma_wallpaper_image.so
#9  0xb76bb864 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#10 0xb76bbd41 in QMetaObject::activate(QObject*, QMetaObject const*, int, int, void**) () from /usr/lib/libQtCore.so.4
#11 0xb68ce985 in QAbstractButton::clicked(bool) () from /usr/lib/libQtGui.so.4
#12 0xb65e6dad in ?? () from /usr/lib/libQtGui.so.4
#13 0xb65e8aeb in ?? () from /usr/lib/libQtGui.so.4
#14 0xb65e8d86 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#15 0xb629abac in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#16 0xb65e6c40 in QAbstractButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#17 0xb6693c83 in QPushButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#18 0xb62438fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#19 0xb624bbbb in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#20 0xb6c82451 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#21 0xb76a532e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#22 0xb624abdc in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#23 0xb62bb80a in ?? () from /usr/lib/libQtGui.so.4
#24 0xb62bad7e in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#25 0xb62e5b68 in ?? () from /usr/lib/libQtGui.so.4
#26 0xb5e1e4c2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0xb5e21d98 in ?? () from /usr/lib/libglib-2.0.so.0
#28 0xb5e21ebe in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#29 0xb76d1011 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#30 0xb62e529a in ?? () from /usr/lib/libQtGui.so.4
#31 0xb76a398d in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#32 0xb76a3dd9 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#33 0xb532d18c in ?? () from /usr/lib/libknewstuff2.so.4
#34 0xb532d5c5 in KNS::Engine::downloadDialogModal(QWidget*) () from /usr/lib/libknewstuff2.so.4
#35 0xa8dda997 in ?? () from /usr/lib/kde4/plasma_wallpaper_image.so
#36 0xa8dddecc in ?? () from /usr/lib/kde4/plasma_wallpaper_image.so
#37 0xb76bb864 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#38 0xb76bbd41 in QMetaObject::activate(QObject*, QMetaObject const*, int, int, void**) () from /usr/lib/libQtCore.so.4
#39 0xb68ce985 in QAbstractButton::clicked(bool) () from /usr/lib/libQtGui.so.4
#40 0xb65e6dad in ?? () from /usr/lib/libQtGui.so.4
#41 0xb65e8aeb in ?? () from /usr/lib/libQtGui.so.4
#42 0xb65e8d86 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#43 0xb629abac in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#44 0xb65e6c40 in QAbstractButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#45 0xb6693c83 in QPushButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#46 0xb62438fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#47 0xb624bbbb in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#48 0xb6c82451 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#49 0xb76a532e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#50 0xb624abdc in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#51 0xb62bb80a in ?? () from /usr/lib/libQtGui.so.4
#52 0xb62bad7e in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#53 0xb62e5b68 in ?? () from /usr/lib/libQtGui.so.4
#54 0xb5e1e4c2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#55 0xb5e21d98 in ?? () from /usr/lib/libglib-2.0.so.0
#56 0xb5e21ebe in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#57 0xb76d1011 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#58 0xb62e529a in ?? () from /usr/lib/libQtGui.so.4
#59 0xb76a398d in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#60 0xb76a3dd9 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#61 0xb76a6270 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#62 0xb6243774 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#63 0xb4197b49 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#64 0x0804e147 in _start ()