gwenview crashed with SIGSEGV in QWidget::effectiveWinId()

Binary package hint: kdegraphics

gwenview crashes repeatedly.
The crash occured while watching pictures in full screen mode and browsing withh cursor keys.

ProblemType: Crash
Architecture: amd64
CrashCounter: 1
Date: Sat Oct 31 15:56:17 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/gwenview
NonfreeKernelModules: fglrx
Package: gwenview 4:4.3.2-0ubuntu1
ProcCmdline: /usr/bin/gwenview /home/username/disks/xp_data/Storage/fotos/2009/Kreta/100_0777.JPG -caption Gwenview -icon gwenview
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SegvAnalysis:
 Segfault happened at: 0x7f471ed06a85 <_ZNK7QWidget14effectiveWinIdEv+21>: mov (%rax),%rbx
 PC (0x7f471ed06a85) ok
 source "(%rax)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rbx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: kdegraphics
StacktraceTop:
 QWidget::effectiveWinId() const ()
 ?? () from /usr/lib/libQtGui.so.4
 QApplication::setOverrideCursor(QCursor const&) ()
 Gwenview::FullScreenBar::slotAutoHideCursorTimeout()
 Gwenview::FullScreenBar::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libgwenviewlib.so.4
Title: gwenview crashed with SIGSEGV in QWidget::effectiveWinId()
Uname: Linux 2.6.31-14-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare