That bug has been described on https://launchpad.net/distros/ubuntu/+source/gaim/+bug/68374

"Yes, gaim crashed.
Sorry, I don't know the way to reproduce because it crashed while I'm left. But I tried to make a debuggable trace.

Is this trace helpful to debug?
...
 libpango1.0-0 1.14.5-0ubuntu1
...
 #0 0xb760d37a in memcpy () from /lib/tls/i686/cmov/libc.so.6
 No symbol table info available.
 #1 0xb790d717 in IA__g_string_insert_len (string=0x8e2d8f0, pos=-1,
     val=0x8d67560 "SPARCS", len=288428136) at gstring.c:479
  offset = 4058464
  precount = 6
  __PRETTY_FUNCTION__ = "IA__g_string_insert_len"
 #2 0xb790d956 in IA__g_string_append_len (string=0x8e2d8f0,
     val=0x8988868 "markup", len=6) at gstring.c:530
  __PRETTY_FUNCTION__ = "IA__g_string_append_len"
 #3 0xb7a15ddc in text_handler (context=0x8f10dc0, text=0x8988868 "markup",
     text_len=6, user_data=0x8e95680, error=0xbf9d5700) at pango-markup.c:430
  end = <value optimized out>
  range_end = <value optimized out>
  uline_len = <value optimized out>
  p = <value optimized out>
  range_start = <value optimized out>
  uline_index = <value optimized out>
 #4 0xb78f7acc in IA__g_markup_parse_context_parse (context=0x8f10dc0,
     text=0x8ebcbd8 "<span weight='bold'>SPARCS</span> (15/40)", text_len=41,
     error=0xbf9d57b4) at gmarkup.c:1479
  tmp_error = (GError *) 0x0
  unescaped = (GString *) 0x8d9ded0
  first_invalid = (const gchar *) 0x8ebcc01 ""
  __PRETTY_FUNCTION__ = "IA__g_markup_parse_context_parse"
 #5 0xb7a15964 in pango_parse_markup (
     markup_text=0x8ebcbd8 "<span weight='bold'>SPARCS</span> (15/40)",
     length=41, accel_marker=0, attr_list=0xbf9d57b0, text=0xbf9d57b8,
     accel_char=0x0, error=0xbf9d57b4) at pango-markup.c:637
  context = (GMarkupParseContext *) 0x8f10dc0
  needs_root = 1
  tmp_list = <value optimized out>
  p = <value optimized out>
  end = <value optimized out>
  __PRETTY_FUNCTION__ = "pango_parse_markup"
 #6 0xb7b6d558 in gtk_cell_renderer_text_set_property (object=0x8389948,
     param_id=2, value=0xbf9d5868, pspec=0x83fa4e8)
     at gtkcellrenderertext.c:1022
  str = (const gchar *) 0x8988868 "markup"
  text = (gchar *) 0x0
  error = (GError *) 0x0
  attrs = (PangoAttrList *) 0x0
  celltext = <value optimized out>
  priv = (GtkCellRendererTextPrivate *) 0x83899b0
 #7 0xb796bb8a in IA__g_object_set_property (object=0x8389948,
     property_name=0x82e9560 "markup", value=0xbf9d58c8) at gobject.c:697
  nqueue = (GObjectNotifyQueue *) 0x8aa6c50
  pspec = (GParamSpec *) 0x83fa4e8
  __PRETTY_FUNCTION__ = "IA__g_object_set_property"
 #8 0xb7d30bcc in IA__gtk_tree_view_column_cell_set_cell_data (
     tree_column=0x83fd060, tree_model=0x8278ad8, iter=0xbf9d59e4,
     is_expander=1, is_expanded=1) at gtktreeviewcolumn.c:2519
  info = (GtkTreeViewColumnCellInfo *) 0x8402438
  cell = (GObject *) 0x8389948
  list = (GSList *) 0x83f85c8
  value = {g_type = 64, data = {{v_int = 148440976, v_uint = 148440976,
       v_long = 148440976, v_ulong = 148440976, v_int64 = 148440976,
       v_uint64 = 148440976, v_float = 1.30619904e-33,
       v_double = 7.3339586676744978e-316, v_pointer = 0x8d90790}, {v_int = 0,
       v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0,
       v_float = 0, v_double = 0, v_pointer = 0x0}}}
  cell_list = (GList *) 0x839ed70
  __PRETTY_FUNCTION__ = "IA__gtk_tree_view_column_cell_set_cell_data"
..."