Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.85 (KDE 4.2.85 (KDE 4.3 Beta1))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-11-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I just opened NetBeans 6.5.1 and Plasma crashed.
Firefox 3.0.10 and Skype 2.0.0.72 were also active

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 0 (LWP 3419)]

Thread 2 (Thread 0xa94bdb90 (LWP 3420)):
#0  0xb806e430 in __kernel_vsyscall ()
#1  0xb51990e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb63922ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb65765b2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#4  0xb79d4ae2 in ?? () from /usr/lib/libQtNetwork.so.4
#5  0xb657556e in ?? () from /usr/lib/libQtCore.so.4
#6  0xb51954ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb638349e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb4cd9710 (LWP 3419)):
[KCrash Handler]
#6  0xa968d137 in TaskManager::Task::window () from /usr/lib/libtaskmanager.so.4
#7  0xb6679f0f in QObject::event () from /usr/lib/libQtCore.so.4
#8  0xb6f7d257 in QGraphicsWidget::event () from /usr/lib/libQtGui.so.4
#9  0xb68f4bcc in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#10 0xb68fcede in QApplication::notify () from /usr/lib/libQtGui.so.4
#11 0xb7756c9d in KApplication::notify () from /usr/lib/libkdeui.so.5
#12 0xb66697ab in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#13 0xb6698b31 in ?? () from /usr/lib/libQtCore.so.4
#14 0xb6695280 in ?? () from /usr/lib/libQtCore.so.4
#15 0xb4f93b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#16 0xb4f970eb in ?? () from /usr/lib/libglib-2.0.so.0
#17 0xb4f97268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#18 0xb66951d8 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#19 0xb6996765 in ?? () from /usr/lib/libQtGui.so.4
#20 0xb6667dda in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#21 0xb666821a in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#22 0xb666a6c9 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#23 0xb68f4a47 in QApplication::exec () from /usr/lib/libQtGui.so.4
#24 0xb8013290 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#25 0x08048712 in _start ()