Version:           4.2.86 (using KDE 4.2.85)
OS:                Linux
Installed from:    SuSE RPMs

after release of KDE 4.3 beta 1 i changed repositories from UNSTABLE to FACTORY (that's where 4.3 resides now, i believe). everything works fine, except that right-clicking on the desktop and some but not all widgets causes plasma-desktop to crash with the following debug message:

------------------
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb48c7700 (LWP 7873))]

Thread 2 (Thread 0xa8b2bb90 (LWP 7874)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb6375c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb63d5582 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb78cd252 in ?? () from /usr/lib/libQtNetwork.so.4
#4  0xb63d4572 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb63721b5 in start_thread () from /lib/libpthread.so.0
#6  0xb61b53be in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb48c7700 (LWP 7873)):
[KCrash Handler]
#6  0xb674dc0a in QAction::setIcon(QIcon const&) () from /usr/lib/libQtGui.so.4
#7  0xa90b6e2f in ?? () from /usr/lib/kde4/plasma_containment_desktop.so
#8  0xb7dcaa85 in ?? () from /usr/lib/libplasma.so.3
#9  0xb7dcb264 in ?? () from /usr/lib/libplasma.so.3
#10 0xb7dcb385 in Plasma::Containment::contextMenuEvent(QGraphicsSceneContextMenuEvent*) () from /usr/lib/libplasma.so.3
#11 0xb6d3fc58 in QGraphicsItem::sceneEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#12 0xb6d8fe6f in QGraphicsWidget::sceneEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#13 0xb6d651bc in ?? () from /usr/lib/libQtGui.so.4
#14 0xb6d71a7f in QGraphicsScene::contextMenuEvent(QGraphicsSceneContextMenuEvent*) () from /usr/lib/libQtGui.so.4
#15 0xb6d72a2a in QGraphicsScene::event(QEvent*) () from /usr/lib/libQtGui.so.4
#16 0xb67528ec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#17 0xb675abde in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#18 0xb7603b8d in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#19 0xb64c908b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#20 0xb6d7fc56 in QGraphicsView::contextMenuEvent(QContextMenuEvent*) () from /usr/lib/libQtGui.so.4
#21 0xb67a9bbc in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#22 0xb6b3a6a3 in QFrame::event(QEvent*) () from /usr/lib/libQtGui.so.4
#23 0xb6bda8ef in QAbstractScrollArea::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#24 0xb6d852d2 in QGraphicsView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#25 0xb6bdcef5 in ?? () from /usr/lib/libQtGui.so.4
#26 0xb64c829a in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#27 0xb67528ca in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#28 0xb675b11d in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#29 0xb7603b8d in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#30 0xb64c908b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#31 0xb675da2e in QCoreApplication::sendSpontaneousEvent(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#32 0xb67cadaf in ?? () from /usr/lib/libQtGui.so.4
#33 0xb67c9995 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#34 0xb67f331a in ?? () from /usr/lib/libQtGui.so.4
#35 0xb4cd79c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#36 0xb4cdb083 in ?? () from /usr/lib/libglib-2.0.so.0
#37 0xb4cdb241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#38 0xb64f47f8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#39 0xb67f2a15 in ?? () from /usr/lib/libQtGui.so.4
#40 0xb64c76aa in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#41 0xb64c7af2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#42 0xb64c9f99 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#43 0xb6752767 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#44 0xb7f80a00 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#45 0x08048792 in _start ()
------------------

i confirmed package integrity (via yast) and double-checked if all packages have been updated, but couldn't find any errors in my installation.

i noticed that, when editing desktop settings (via the diamond), the options for desktop activity -> type (desktop, folderview) don't exist anymore: the dropdown is blank. (i'm not using folderview as activity type.)