Version:            (using KDE 4.2.4)
OS:                Linux
Installed from:    Slackware Packages

Just installed Slackware13 64 bits and a few apps. I left clicked in an icon on Desktop and plasma crashed and generated this backtrace:

Aplicativo: Área de trabalho do Plasma (plasma), sinal SIGSEGV
0x00007fbe1d3a2881 in nanosleep () from /lib64/libc.so.6
[Current thread is 0 (LWP 4632)]

Thread 4 (Thread 0x7fbe0513f950 (LWP 4649)):
#0  0x00007fbe1de19199 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbe1e0923b9 in QWaitCondition::wait () from /usr/lib64/libQtCore.so.4
#2  0x00007fbe21a6f38c in ?? () from /usr/lib64/libQtNetwork.so.4
#3  0x00007fbe1e0913c2 in ?? () from /usr/lib64/libQtCore.so.4
#4  0x00007fbe1de153a0 in start_thread () from /lib64/libpthread.so.0
#5  0x00007fbe1d3dfbdd in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fbe04118950 (LWP 4650)):
#0  0x00007fbe1de19199 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fbe1e0923b9 in QWaitCondition::wait () from /usr/lib64/libQtCore.so.4
#2  0x00007fbe075f07ee in ?? () from /usr/lib64/kde4/plasma_wallpaper_image.so
#3  0x00007fbe1e0913c2 in ?? () from /usr/lib64/libQtCore.so.4
#4  0x00007fbe1de153a0 in start_thread () from /lib64/libpthread.so.0
#5  0x00007fbe1d3dfbdd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fbdfbbe2950 (LWP 14255)):
#0  0x00007fbe1d3d8482 in select () from /lib64/libc.so.6
#1  0x00007fbe1e1585e6 in ?? () from /usr/lib64/libQtCore.so.4
#2  0x00007fbe1e0913c2 in ?? () from /usr/lib64/libQtCore.so.4
#3  0x00007fbe1de153a0 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fbe1d3dfbdd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fbe22ef9760 (LWP 4632)):
[KCrash Handler]
#5  0x00007fbe1ee71514 in QGraphicsItem::isWidget () from /usr/lib64/libQtGui.so.4
#6  0x00007fbe1ee73cb9 in QGraphicsItem::isWindow () from /usr/lib64/libQtGui.so.4
#7  0x00007fbe1eeaa961 in QGraphicsScene::event () from /usr/lib64/libQtGui.so.4
#8  0x00007fbe1e8abefd in QApplicationPrivate::notify_helper () from /usr/lib64/libQtGui.so.4
#9  0x00007fbe1e8b417a in QApplication::notify () from /usr/lib64/libQtGui.so.4
#10 0x00007fbe211a92fb in KApplication::notify () from /usr/lib64/libkdeui.so.5
#11 0x00007fbe1e179afc in QCoreApplication::notifyInternal () from /usr/lib64/libQtCore.so.4
#12 0x00007fbe1eebabd6 in QGraphicsView::viewportEvent () from /usr/lib64/libQtGui.so.4
#13 0x00007fbe1e178e08 in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib64/libQtCore.so.4
#14 0x00007fbe1e8abecc in QApplicationPrivate::notify_helper () from /usr/lib64/libQtGui.so.4
#15 0x00007fbe1e8b417a in QApplication::notify () from /usr/lib64/libQtGui.so.4
#16 0x00007fbe211a92fb in KApplication::notify () from /usr/lib64/libkdeui.so.5
#17 0x00007fbe1e179afc in QCoreApplication::notifyInternal () from /usr/lib64/libQtCore.so.4
#18 0x00007fbe1e8fd2ba in QWidget::event () from /usr/lib64/libQtGui.so.4
#19 0x00007fbe1ec97fab in QFrame::event () from /usr/lib64/libQtGui.so.4
#20 0x00007fbe1ed294f9 in QAbstractScrollArea::event () from /usr/lib64/libQtGui.so.4
#21 0x00007fbe1e8abefd in QApplicationPrivate::notify_helper () from /usr/lib64/libQtGui.so.4
#22 0x00007fbe1e8b417a in QApplication::notify () from /usr/lib64/libQtGui.so.4
#23 0x00007fbe211a92fb in KApplication::notify () from /usr/lib64/libkdeui.so.5
#24 0x00007fbe1e179afc in QCoreApplication::notifyInternal () from /usr/lib64/libQtCore.so.4
#25 0x00007fbe1e8b2c65 in QApplication::setActiveWindow () from /usr/lib64/libQtGui.so.4
#26 0x00007fbe1e91ca70 in QApplication::x11ProcessEvent () from /usr/lib64/libQtGui.so.4
#27 0x00007fbe1e943e44 in ?? () from /usr/lib64/libQtGui.so.4
#28 0x00007fbe1a11328b in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#29 0x00007fbe1a116a4d in ?? () from /usr/lib64/libglib-2.0.so.0
#30 0x00007fbe1a116c0b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#31 0x00007fbe1e1a316f in QEventDispatcherGlib::processEvents () from /usr/lib64/libQtCore.so.4
#32 0x00007fbe1e9435ef in ?? () from /usr/lib64/libQtGui.so.4
#33 0x00007fbe1e1783a2 in QEventLoop::processEvents () from /usr/lib64/libQtCore.so.4
#34 0x00007fbe1e17876d in QEventLoop::exec () from /usr/lib64/libQtCore.so.4
#35 0x00007fbe1e17aa34 in QCoreApplication::exec () from /usr/lib64/libQtCore.so.4
#36 0x00007fbe22ade69b in kdemain () from /usr/lib64/libkdeinit4_plasma.so
#37 0x00007fbe1d319526 in __libc_start_main () from /lib64/libc.so.6
#38 0x00000000004007a9 in _start ()