==11100== Invalid read of size 4 ==11100== at 0x67977AE: __dynamic_cast (in /usr/lib/libstdc++.so.6.0.9) ==11100== by 0x45E57F8: KSharedPtr KSharedPtr::dynamicCast(KSharedPtr const&) (ksharedptr.h:177) ==11100== by 0x45E23F2: CollectionTreeView::drawRow(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const (CollectionTreeView.cpp:200) ==11100== by 0x63CD263: QTreeView::drawTree(QPainter*, QRegion const&) const (in /usr/lib/libQtGui.so.4.3.2) ==11100== by 0x63CDBFC: QTreeView::paintEvent(QPaintEvent*) (in /usr/lib/libQtGui.so.4.3.2) ==11100== by 0x5F2C5A9: QWidget::event(QEvent*) (in /usr/lib/libQtGui.so.4.3.2) ==11100== by 0x62766F1: QFrame::event(QEvent*) (in /usr/lib/libQtGui.so.4.3.2) ==11100== by 0x630895E: QAbstractScrollArea::viewportEvent(QEvent*) (in /usr/lib/libQtGui.so.4.3.2) ==11100== by 0x6395A1C: QAbstractItemView::viewportEvent(QEvent*) (in /usr/lib/libQtGui.so.4.3.2) ==11100== by 0x63CDE25: QTreeView::viewportEvent(QEvent*) (in /usr/lib/libQtGui.so.4.3.2) ==11100== by 0x630B4ED: (within /usr/lib/libQtGui.so.4.3.2) ==11100== by 0x630B51F: (within /usr/lib/libQtGui.so.4.3.2) ==11100== Address 0xFFFFFFFD is not stack'd, malloc'd or (recently) free'd