Do not change the statusicon if we don't have a status icon

mitterlib/ui/ui_pygtk.py

@@ -434,11 +434,12 @@ class Interface(object):
 
         replies = self._main_tabs.get_nth_page(1)
         self._update_title(data, replies.count)
-        if (data + replies.count) > 0:
-            self._statusicon.set_from_pixbuf(self._images['new-messages'])
-            return
+        if self._statusicon:
+            if (data + replies.count) > 0:
+                self._statusicon.set_from_pixbuf(self._images['new-messages'])
+                return
 
-        self._statusicon.set_from_pixbuf(self._images['icon'])
+            self._statusicon.set_from_pixbuf(self._images['icon'])
         return
 
     def _update_replies_count(self, widget, data):
@@ -450,11 +451,12 @@ class Interface(object):
 
         messages = self._main_tabs.get_nth_page(0)
         self._update_title(messages.count, data)
-        if (data + messages.count) > 0:
-            self._statusicon.set_from_pixbuf(self._images['new-messages'])
-            return
+        if self._statusicon:
+            if (data + messages.count) > 0:
+                self._statusicon.set_from_pixbuf(self._images['new-messages'])
+                return
 
-        self._statusicon.set_from_pixbuf(self._images['icon'])
+            self._statusicon.set_from_pixbuf(self._images['icon'])
         return
 
     def _clear_posts(self, widget):