gfax crashes on startup

[Marcus Habermehl]

Binary package hint: gfax

Ubuntu 10.04 LTS
gfax 0.7.7+ds-1

After starting fax it crashes immediately with this errors.

$ gfax
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.NullReferenceException: Object reference not set to an instance of an object
  at gfax.G_ListView.DateTimeColumnDataHandler (Gtk.TreeViewColumn column, Gtk.CellRenderer cell, TreeModel model, TreeIter iter) [0x00000]
  at GtkSharp.TreeCellDataFuncWrapper.NativeCallback (IntPtr tree_column, IntPtr cell, IntPtr tree_model, IntPtr iter, IntPtr data) [0x00000]
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at GtkSharp.TreeCellDataFuncWrapper.NativeCallback(IntPtr tree_column, IntPtr cell, IntPtr tree_model, IntPtr iter, IntPtr data)
   at Gtk.ListStore.gtk_list_store_append(IntPtr , IntPtr )
   at Gtk.ListStore.Append()
   at Gtk.ListStore.AppendValues(System.Array values)
   at Gtk.ListStore.AppendValues(System.Object[] values)
   at gfax.G_ListView.AddTextToRow(System.Object[] args)
   at gfax.Gfax..ctor(System.String fname, System.String[] args)
   at gfax.gfax.Main(System.String[] args)

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gfax 0.7.7+ds-1
ProcVersionSignature: Ubuntu 2.6.32-23.37-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-23-generic i686
Architecture: i386
CheckboxSubmission: 30205a91d3fb4ea603a348003cb04a0a
CheckboxSystem: 7bd8da88dafd60871851ac52e3ae8049
Date: Tue Jul 6 03:09:55 2010
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
PackageArchitecture: all
ProcEnviron:
 LANG=de_DE.utf8
 SHELL=/bin/bash
SourcePackage: gfax