Version:            (using KDE 4.2.0)
Compiler:           Ubuntu 32 Bit, model name      : Intel(R) Core(TM)2 Quad  CPU   Q9300  @ 2.50GHz . 
OS:                Linux
Installed from:    Ubuntu Packages

When i try to open SystemSettings by clicking on the icon in kickoff, the program starts but at the same time Plasma Workspace crashes and starts again. I've a 4.2svn version.

This's the crash report

[code]
Application: Plasma Workspace (plasma), signal SIGSEGV
[Current thread is 0 (LWP 11972)]

Thread 6 (Thread 0xa9ce1b90 (LWP 11979)):
#0  0xb7f4f430 in __kernel_vsyscall ()
#1  0xb6583075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb65e96f2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#3  0xb793c532 in ?? () from /usr/lib/libQtNetwork.so.4
#4  0xb65e86ae in ?? () from /usr/lib/libQtCore.so.4
#5  0xb657f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#6  0xb63d87ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 5 (Thread 0xa924bb90 (LWP 11980)):
#0  0xb7f4f430 in __kernel_vsyscall ()
#1  0xb63d0c01 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0xb66b8150 in ?? () from /usr/lib/libQtCore.so.4
#3  0xb65e86ae in ?? () from /usr/lib/libQtCore.so.4
#4  0xb657f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0xb63d87ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 4 (Thread 0xa8a02b90 (LWP 11985)):
#0  0xb7f4f430 in __kernel_vsyscall ()
#1  0xb6583075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb65e96f2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#3  0xa9f6683a in RenderThread::run () from /opt/kde4/lib/kde4/plasma_wallpaper_image.so
#4  0xb65e86ae in ?? () from /usr/lib/libQtCore.so.4
#5  0xb657f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#6  0xb63d87ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xa18d1b90 (LWP 12148)):
#0  0xb7f4f430 in __kernel_vsyscall ()
#1  0xb6583075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb65e96f2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#3  0xb5a45678 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned () from /opt/kde4/lib/libthreadweaver.so.4
#4  0xb5a4841c in ThreadWeaver::WorkingHardState::waitForAvailableJob () from /opt/kde4/lib/libthreadweaver.so.4
#5  0xb5a4425b in ThreadWeaver::WeaverImpl::waitForAvailableJob () from /opt/kde4/lib/libthreadweaver.so.4
#6  0xb5a4851a in ThreadWeaver::WorkingHardState::applyForWork () from /opt/kde4/lib/libthreadweaver.so.4
#7  0xb5a45c03 in ThreadWeaver::WeaverImpl::applyForWork () from /opt/kde4/lib/libthreadweaver.so.4
#8  0xb5a464ee in ThreadWeaver::ThreadRunHelper::run () from /opt/kde4/lib/libthreadweaver.so.4
#9  0xb5a46b2b in ThreadWeaver::Thread::run () from /opt/kde4/lib/libthreadweaver.so.4
#10 0xb65e86ae in ?? () from /usr/lib/libQtCore.so.4
#11 0xb657f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#12 0xb63d87ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xa097ab90 (LWP 12149)):
#0  0xb7f4f430 in __kernel_vsyscall ()
#1  0xb6583075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb65e96f2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#3  0xb5a45678 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned () from /opt/kde4/lib/libthreadweaver.so.4
#4  0xb5a4841c in ThreadWeaver::WorkingHardState::waitForAvailableJob () from /opt/kde4/lib/libthreadweaver.so.4
#5  0xb5a4425b in ThreadWeaver::WeaverImpl::waitForAvailableJob () from /opt/kde4/lib/libthreadweaver.so.4
#6  0xb5a4851a in ThreadWeaver::WorkingHardState::applyForWork () from /opt/kde4/lib/libthreadweaver.so.4
#7  0xb5a45c03 in ThreadWeaver::WeaverImpl::applyForWork () from /opt/kde4/lib/libthreadweaver.so.4
#8  0xb5a464ee in ThreadWeaver::ThreadRunHelper::run () from /opt/kde4/lib/libthreadweaver.so.4
#9  0xb5a46b2b in ThreadWeaver::Thread::run () from /opt/kde4/lib/libthreadweaver.so.4
#10 0xb65e86ae in ?? () from /usr/lib/libQtCore.so.4
#11 0xb657f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#12 0xb63d87ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb53b06c0 (LWP 11972)):
[KCrash Handler]
#6  0xb6ec163e in ?? () from /usr/lib/libQtGui.so.4
#7  0xb6ec195b in QStandardItem::row () from /usr/lib/libQtGui.so.4
#8  0xa9df9874 in Kickoff::RecentlyUsedModel::recentApplicationRemoved () from /opt/kde4/lib/liblibkickoff.so
#9  0xa9dfa08a in Kickoff::RecentlyUsedModel::qt_metacall () from /opt/kde4/lib/liblibkickoff.so
#10 0xb66eda60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#11 0xb66ee7e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#12 0xa9df4bd3 in Kickoff::RecentApplications::applicationRemoved () from /opt/kde4/lib/liblibkickoff.so
#13 0xa9df5e23 in Kickoff::RecentApplications::add () from /opt/kde4/lib/liblibkickoff.so
#14 0xa9e04255 in Kickoff::ServiceItemHandler::openUrl () from /opt/kde4/lib/liblibkickoff.so
#15 0xa9e037e5 in Kickoff::UrlItemLauncher::Private::openUrl () from /opt/kde4/lib/liblibkickoff.so
#16 0xa9e03163 in Kickoff::UrlItemLauncher::openItem () from /opt/kde4/lib/liblibkickoff.so
#17 0xa9e6d50f in Kickoff::Launcher::eventFilter () from /opt/kde4/lib/kde4/plasma_applet_launcher.so
#18 0xb66d804a in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4
#19 0xb69688ca in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#20 0xb69710e1 in QApplication::notify () from /usr/lib/libQtGui.so.4
#21 0xb76d050d in KApplication::notify () from /opt/kde4/lib/libkdeui.so.5
#22 0xb66d8e61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#23 0xb697036e in QApplicationPrivate::sendMouseEvent () from /usr/lib/libQtGui.so.4
#24 0xb69da656 in ?? () from /usr/lib/libQtGui.so.4
#25 0xb69d99e5 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#26 0xb6a037aa in ?? () from /usr/lib/libQtGui.so.4
#27 0xb565d6f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#28 0xb5660da3 in ?? () from /usr/lib/libglib-2.0.so.0
#29 0xb5660f61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#30 0xb6703478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#31 0xb6a02ea5 in ?? () from /usr/lib/libQtGui.so.4
#32 0xb66d752a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#33 0xb66d76ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#34 0xb66d9da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#35 0xb6968767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#36 0xb7efb156 in kdemain () from /opt/kde4/lib/libkdeinit4_plasma.so
#37 0x08048752 in main ()
[/code]