diff -up gwibber-2.30.0.1/gwibber/gwui.py.BAD gwibber-2.30.0.1/gwibber/gwui.py
--- gwibber-2.30.0.1/gwibber/gwui.py.BAD	2010-05-07 10:54:59.206164796 -0400
+++ gwibber-2.30.0.1/gwibber/gwui.py	2010-05-07 10:57:23.104165212 -0400
@@ -906,6 +906,8 @@ class InputTextView(gtk.TextView):
             error_handler=error_shortened)
 
   def set_overlay_text(self, text):
+    if not self.pango_overlay:
+      self.pango_overlay = self.create_pango_layout("")
     self.pango_overlay.set_markup(self.overlay_text % (self.overlay_color, text))
 
   def on_size_allocate(self, *args):