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

I have forced fonts dpi to 120dpi and the antialiasing was enabled with hinting style full.After sometime plasma crashed and came out with this backtrace
================================================================================


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 2.6.27.7-server-0.uc1mnb i686
Distribution: "Mandriva Linux 2009.1"

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Aborted
[Current thread is 1 (Thread 0xb48d86d0 (LWP 9596))]

Thread 2 (Thread 0xa873cb90 (LWP 9597)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb4e84c45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i686/libpthread.so.0
#2  0xb7de98dd in pthread_cond_wait () from /lib/i686/libc.so.6
#3  0xb658d52b in QWaitCondition::wait (this=0xa2836e8, mutex=0xa2836e4, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb4f42ba4 in QHostInfoAgent::run (this=0xa2836d8) at kernel/qhostinfo.cpp:260
#5  0xb658c41f in QThreadPrivate::start (arg=0xa2836d8) at thread/qthread_unix.cpp:189
#6  0xb4e81315 in start_thread () from /lib/i686/libpthread.so.0
#7  0xb7ddc25e in clone () from /lib/i686/libc.so.6

Thread 1 (Thread 0xb48d86d0 (LWP 9596)):
[KCrash Handler]
#6  0xffffe424 in __kernel_vsyscall ()
#7  0xb7d29c00 in raise () from /lib/i686/libc.so.6
#8  0xb7d2b668 in abort () from /lib/i686/libc.so.6
#9  0xb6583c85 in qt_message_output (msgType=QtFatalMsg, buf=0xa468b60 "ASSERT: \"d\" in file /usr/include/ksharedptr.h, line 126") at global/qglobal.cpp:2017
#10 0xb6583d7c in qFatal (msg=0x6 <Address 0x6 out of bounds>) at global/qglobal.cpp:2216
#11 0xb6583e75 in qt_assert (assertion=0xa8f12697 "d", file=0xa8f11d80 "/usr/include/ksharedptr.h", line=126) at global/qglobal.cpp:1786
#12 0xa8efc850 in KSharedPtr<TaskManager::Task>::operator-> (this=0xbfb1c5cc) at /usr/include/ksharedptr.h:126
#13 0xa8f0861e in AbstractTaskItem::timerEvent (this=0xa9615a0, event=0xbfb1da7c) at /usr/src/debug/kdebase-workspace-4.2.85/plasma/applets/tasks/abstracttaskitem.cpp:400
#14 0xb669913b in QObject::event (this=0xa9615a0, e=0xbfb1da7c) at kernel/qobject.cpp:1073
#15 0xb6fc7e9c in QGraphicsWidget::event (this=0xa9615a0, event=0xbfb1da7c) at graphicsview/qgraphicswidget.cpp:1340
#16 0xb690722c in QApplicationPrivate::notify_helper (this=0x9965278, receiver=0xa9615a0, e=0xbfb1da7c) at kernel/qapplication.cpp:4057
#17 0xb690f9a6 in QApplication::notify (this=0x9958230, receiver=0xa9615a0, e=0xbfb1da7c) at kernel/qapplication.cpp:3604
#18 0xb7600f60 in KApplication::notify (this=0x9958230, receiver=0xa9615a0, event=0xbfb1da7c) at /usr/src/debug/kdelibs-4.2.85/kdeui/kernel/kapplication.cpp:307
#19 0xb66883ee in QCoreApplication::notifyInternal (this=0x9958230, receiver=0xa9615a0, event=0xbfb1da7c) at kernel/qcoreapplication.cpp:610
#20 0xb66b8a8d in QTimerInfoList::activateTimers (this=0x9967a9c) at ../../src/corelib/kernel/qcoreapplication.h:213
#21 0xb66b536e in timerSourceDispatch (source=0x9967a68) at kernel/qeventdispatcher_glib.cpp:164
#22 0xb4c6954a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#23 0xb4c6cbb4 in ?? () from /usr/lib/libglib-2.0.so.0
#24 0xb4c6cd3f in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#25 0xb66b52ca in QEventDispatcherGlib::processEvents (this=0x9964938, flags={i = -1078862872}) at kernel/qeventdispatcher_glib.cpp:324
#26 0xb69abdda in QGuiEventDispatcherGlib::processEvents (this=0x9964938, flags={i = -1078862824}) at kernel/qguieventdispatcher_glib.cpp:202
#27 0xb66869b3 in QEventLoop::processEvents (this=0xbfb1dc90, flags={i = -1078862760}) at kernel/qeventloop.cpp:149
#28 0xb6686e01 in QEventLoop::exec (this=0xbfb1dc90, flags={i = -1078862696}) at kernel/qeventloop.cpp:200
#29 0xb6689366 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#30 0xb6907094 in QApplication::exec () at kernel/qapplication.cpp:3526
#31 0xb7e820ef in kdemain (argc=1, argv=0xbfb1de34) at /usr/src/debug/kdebase-workspace-4.2.85/plasma/shells/desktop/main.cpp:50
#32 0x0804857f in main (argc=) at /usr/src/debug/kdebase-workspace-4.2.85/build/plasma/shells/desktop/plasma-desktop_dummy.cpp:3