Pushed from downstream Ubuntu on behalf of the original reporter (http://www.omgubuntu.co.uk/2010/08/ubuntu-1010-alpha-3-released-whats-new.html#comment-66812411):

https://bugs.launchpad.net/ubuntu/+source/f-spot/+bug/609713

Binary package hint: f-spot

f-spot:
  Installed: 0.7.1-1
  Candidate: 0.7.1-1
  Version table:
 *** 0.7.1-1 0
        500 http://gb.archive.ubuntu.com/ubuntu/ maverick/main Packages
        100 /var/lib/dpkg/status

Description:	Ubuntu maverick (development branch)
Release:	10.10

Steps to reproduce:
1. Select a photo, either in browse or edit views.
2. Click on the Menu > File > Print

F-spot instantly closes without warning or any kind of error message.

Output when running in a terminal:

(f-spot:2851): GdkPixbuf-WARNING **: GdkPixbufLoader finalized without calling gdk_pixbuf_loader_close() - this is not allowed. You must explicitly end the data stream to the loader before dropping the last reference.
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.EntryPointNotFoundException: f_pixbuf_from_cairo_surface
  at (wrapper managed-to-native) FSpot.PrintOperation:f_pixbuf_from_cairo_surface (intptr)
  at FSpot.PrintOperation.CreatePixbuf (Cairo.Surface s) [0x00000] in <filename unknown>:0
  at FSpot.PrintOperation.OnCustomWidgetChanged (Gtk.Widget widget) [0x00000] in <filename unknown>:0
  at FSpot.PrintOperation.OnCreateCustomWidget () [0x00000] in <filename unknown>:0
  at Gtk.PrintOperation.createcustomwidget_cb (IntPtr operation) [0x00000] in <filename unknown>:0
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at Gtk.PrintOperation.createcustomwidget_cb(IntPtr operation)
   at Gtk.PrintOperation.gtk_print_operation_run(IntPtr , Int32 , IntPtr , IntPtr ByRef )
   at Gtk.PrintOperation.Run(PrintOperationAction action, Gtk.Window parent)
   at FSpot.MainWindow.HandlePrintCommand(System.Object sender, System.EventArgs e)
   at System.Reflection.MonoMethod.InternalInvoke(System.Object , System.Object[] , System.Exception ByRef )
   at System.Reflection.MonoMethod.Invoke(System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture)
   at System.Reflection.MethodBase.Invoke(System.Object obj, System.Object[] parameters)
   at System.Delegate.DynamicInvokeImpl(System.Object[] args)
   at System.MulticastDelegate.DynamicInvokeImpl(System.Object[] args)
   at System.Delegate.DynamicInvoke(System.Object[] args)
   at GLib.Signal.ClosureInvokedCB(System.Object o, GLib.ClosureInvokedArgs args)
   at GLib.SignalClosure.Invoke(GLib.ClosureInvokedArgs args)
   at GLib.SignalClosure.MarshalCallback(IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data)
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at FSpot.Driver.Startup()
   at Hyena.Gui.CleanRoomStartup.Startup(Hyena.Gui.StartupInvocationHandler startup)
   at FSpot.Driver.Main(System.String[] args)

Printing is working normally in every other application tried, this is strictly confined to f-spot.