Application that crashed: okular
Version of the application: 0.9.80
KDE Version: 4.3.62 (KDE 4.3.62 (KDE 4.4 >= 20090728))
Qt Version: 4.5.2
Operating System: Linux 2.6.30-gentoo-r4 x86_64

What I was doing when the application crashed:
I was viewing a pdf file...wnated to scroll way back to the begining...so I did with the hoirisontal scroolbar when it crashed. I opened again...it remebered the last position...tried again with the scrollbar same thing happened

 -- Backtrace:
Application: Okular (okular), signal: Aborted
[KCrash Handler]
#5  0x00007f2554bd3095 in raise () from /lib/libc.so.6
#6  0x00007f2554bd44c0 in abort () from /lib/libc.so.6
#7  0x00007f2554c0d89d in __libc_message () from /lib/libc.so.6
#8  0x00007f2554c12e46 in malloc_printerr () from /lib/libc.so.6
#9  0x00007f2556c16bca in KLocalizedStringPrivate::substituteSimple () from /usr/kde/svn/lib64/libkdecore.so.5
#10 0x00007f2556c1a139 in KLocalizedStringPrivate::toString () from /usr/kde/svn/lib64/libkdecore.so.5
#11 0x00007f2556c1ae47 in KLocalizedString::toString () from /usr/kde/svn/lib64/libkdecore.so.5
#12 0x00007f254debd4ff in Okular::DocumentPrivate::localizedSize () from /usr/kde/svn/lib64/libokularcore.so.1
#13 0x00007f254debd6db in Okular::Document::pageSizeString () from /usr/kde/svn/lib64/libokularcore.so.1
#14 0x00007f254e1c400f in PageSizeLabel::notifyViewportChanged () from /usr/kde/svn/lib64/kde4/okularpart.so
#15 0x00007f254deccec3 in Okular::Document::setViewport () from /usr/kde/svn/lib64/libokularcore.so.1
#16 0x00007f254e1d0732 in PageView::slotRequestVisiblePixmaps () from /usr/kde/svn/lib64/kde4/okularpart.so
#17 0x00007f254e1da55b in PageView::qt_metacall () from /usr/kde/svn/lib64/kde4/okularpart.so
#18 0x00007f255653987e in QMetaObject::activate (sender=<value optimized out>, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0xffffffffffffffff)
    at kernel/qobject.cpp:3101
#19 0x00007f2555e08efe in QAbstractSlider::valueChanged (this=0x26fb, _t1=83077) at .moc/debug-shared/moc_qabstractslider.cpp:176
#20 0x00007f2555c1a2d2 in QScrollBar::mouseMoveEvent (this=0xee0540, e=0x7fff6c00a220) at widgets/qscrollbar.cpp:649
#21 0x00007f255588d260 in QWidget::event (this=0xee0540, event=0x7fff6c00a220) at kernel/qwidget.cpp:7534
#22 0x00007f255583a61c in QApplicationPrivate::notify_helper (this=0xb8f2f0, receiver=0xee0540, e=0x7fff6c00a220) at kernel/qapplication.cpp:4056
#23 0x00007f2555841ae9 in QApplication::notify (this=<value optimized out>, receiver=0xee0540, e=0x7fff6c00a220) at kernel/qapplication.cpp:3758
#24 0x00007f255738804b in KApplication::notify () from /usr/kde/svn/lib64/libkdeui.so.5
#25 0x00007f2556524463 in QCoreApplication::notifyInternal (this=0x7fff6c00bf60, receiver=0xee0540, event=0x7fff6c00a220) at kernel/qcoreapplication.cpp:606
#26 0x00007f2555840d5f in QApplicationPrivate::sendMouseEvent (receiver=0xee0540, event=0x7fff6c00a220, alienWidget=0xed7e20, nativeWidget=0xcb1400, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#27 0x00007f25558a23bc in QETWidget::translateMouseEvent (this=0xcb1400, event=<value optimized out>) at kernel/qapplication_x11.cpp:4404
#28 0x00007f25558a11c9 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff6c00bbc0) at kernel/qapplication_x11.cpp:3545
#29 0x00007f25558c6724 in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#30 0x00007f25521d25cb in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#31 0x00007f25521d5cd0 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#32 0x00007f25521d5e00 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#33 0x00007f255654afc6 in QEventDispatcherGlib::processEvents (this=0xb75930, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#34 0x00007f25558c5fbe in QGuiEventDispatcherGlib::processEvents (this=0x26fb, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#35 0x00007f2556522fd2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#36 0x00007f255652316d in QEventLoop::exec (this=0x7fff6c00bee0, flags=) at kernel/qeventloop.cpp:197
#37 0x00007f2556526cbb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#38 0x000000000040835b in main ()

Reported using DrKonqi