Pitivi segfaults

I also get that error if I try to open Pitivi. Btw I use kubuntu gutsy.
Anyone knows how to fix it?

Same problem here on Hardy (x86_64):

$ pitivi
Error: Icon 'misc' not present in theme

$ dpkg -p pitivi
Package: pitivi
Priority: optional
Section: gnome
Installed-Size: 1168
Maintainer: Ubuntu MOTU Developers <email address hidden>
Architecture: all
Version: 0.11.1-0ubuntu1
Depends: gstreamer0.10-gnonlin (>= 0.10.8.1), gstreamer0.10-plugins-base, gstreamer0.10-plugins-good, gstreamer0.10-x, libgstreamer0.10-0 (>= 0.10.13.1), python, python-cairo (>= 1.0.0), python-central (>= 0.5.8), python-glade2, python-gnome2, python-gst0.10 (>= 0.10.6), python-gtk2 (>= 2.8), python-setuptools, python-zopeinterface
Size: 176242
Description: non-linear audio/video editor using GStreamer
 GStreamer is a streaming media framework, based on graphs of filters
 which operate on media data. Applications using this library can do
 anything from real-time sound processing to playing videos, and just
 about anything else media-related. Its plugin-based architecture means
 that new data types or processing capabilities can be added simply by
 installing new plug-ins.
 .
 PiTiVi allows users to easily edit audio/video projects based on the
 GStreamer framework. PiTIVi provides several ways of creating and
 modifying a timeline. Ranging from a simple synopsis view (a-la
 iMovie) to the full-blown editing view (aka Complex View) which puts
 you in complete control of your editing.
Original-Maintainer: Loic Minier <email address hidden>
Python-Version: current

This is likely fixed in latest Ubuntu since upstream fixed that over a year ago.