Version:            (using KDE 4.2.0)
Installed from:    Gentoo Packages

I have try start download new icon pack, the download have not start then I have close the windows, I had this crash:

Application: System Settings (systemsettings), signal SIGABRT
0x00007f6e8ff5d8a1 in nanosleep () from /lib/libc.so.6
Current language:  auto; currently c

Thread 1 (Thread 0x7f6e9387e750 (LWP 5674)):
[KCrash Handler]
#5  0x00007f6e8fef01e5 in *__GI_raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#6  0x00007f6e8fef1703 in *__GI_abort () at abort.c:88
#7  0x00007f6e919d50fd in qt_message_output (msgType=QtFatalMsg, buf=<value optimized out>) at global/qglobal.cpp:2108
#8  0x00007f6e919d5237 in qFatal (msg=<value optimized out>) at global/qglobal.cpp:2309
#9  0x00007f6e88cdab3f in QList<QString>::at (this=0x7fff9b8b30f0, i=0) at /usr/include/qt4/QtCore/qlist.h:393
#10 0x00007f6e88cd828b in IconThemesConfig::getNewTheme (this=0x247d630) at /var/tmp/portage/kde-base/kcontrol-4.2.0/work/kcontrol-4.2.0/kcontrol/icons/iconthemes.cpp:326
#11 0x00007f6e88cd8858 in IconThemesConfig::qt_metacall (this=0x247d630, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fff9b8b32c0)
    at /var/tmp/portage/kde-base/kcontrol-4.2.0/work/kcontrol_build/kcontrol/icons/iconthemes.moc:73
#12 0x00007f6e91ae5d3c in QMetaObject::activate (sender=0x25ee600, from_signal_index=<value optimized out>, to_signal_index=30, argv=0xffffffffffffffff) at kernel/qobject.cpp:3028
#13 0x00007f6e9110efb7 in QAbstractButton::clicked (this=0x162a, _t1=false) at .moc/debug-shared/moc_qabstractbutton.cpp:185
#14 0x00007f6e90e7aadb in QAbstractButtonPrivate::emitClicked (this=0x25ef440) at widgets/qabstractbutton.cpp:544
#15 0x00007f6e90e7c702 in QAbstractButtonPrivate::click (this=0x25ef440) at widgets/qabstractbutton.cpp:537
#16 0x00007f6e90e7c955 in QAbstractButton::mouseReleaseEvent (this=0x25ee600, e=0x7fff9b8b3c80) at widgets/qabstractbutton.cpp:1116
#17 0x00007f6e90ba2b89 in QWidget::event (this=0x25ee600, event=0x7fff9b8b3c80) at kernel/qwidget.cpp:7169
#18 0x00007f6e90b4b15d in QApplicationPrivate::notify_helper (this=0x2210e20, receiver=0x25ee600, e=0x7fff9b8b3c80) at kernel/qapplication.cpp:3809
#19 0x00007f6e90b527ea in QApplication::notify (this=<value optimized out>, receiver=0x25ee600, e=0x7fff9b8b3c80) at kernel/qapplication.cpp:3534
#20 0x00007f6e9266bc11 in KApplication::notify (this=0x7fff9b8b4760, receiver=0x25ee600, event=0x7fff9b8b3c80)
    at /var/tmp/portage/kde-base/kdelibs-4.2.0/work/kdelibs-4.2.0/kdeui/kernel/kapplication.cpp:307
#21 0x00007f6e91acf810 in QCoreApplication::notifyInternal (this=0x7fff9b8b4760, receiver=0x25ee600, event=0x7fff9b8b3c80) at kernel/qcoreapplication.cpp:593
#22 0x00007f6e90b53c52 in QApplicationPrivate::sendMouseEvent (receiver=0x25ee600, event=0x7fff9b8b3c80, alienWidget=0x0, nativeWidget=0x25ee600, buttonDown=<value optimized out>, 
    lastMouseReceiver=@0x7f6e9150b6d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#23 0x00007f6e90bbbe21 in QETWidget::translateMouseEvent (this=0x25ee600, event=<value optimized out>) at kernel/qapplication_x11.cpp:4048
#24 0x00007f6e90bba864 in QApplication::x11ProcessEvent (this=0x7fff9b8b4760, event=0x7fff9b8b4540) at kernel/qapplication_x11.cpp:3166
#25 0x00007f6e90be0336 in QEventDispatcherX11::processEvents (this=0x22133d0, flags={i = -1685371296}) at kernel/qeventdispatcher_x11.cpp:134
#26 0x00007f6e91ace412 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -1685371248}) at kernel/qeventloop.cpp:149
#27 0x00007f6e91ace59d in QEventLoop::exec (this=0x7fff9b8b46d0, flags={i = -1685371168}) at kernel/qeventloop.cpp:200
#28 0x00007f6e91ad0a1d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:851
#29 0x00000000004126b9 in main (argc=5, argv=0x7fff9b8b4a98) at /var/tmp/portage/kde-base/systemsettings-4.2.0/work/systemsettings-4.2.0/systemsettings/main.cpp:67