diff --git a/mitterlib/ui/ui_zork.py b/mitterlib/ui/ui_zork.py
index 591389f..c2bd56d 100644
--- a/mitterlib/ui/ui_zork.py
+++ b/mitterlib/ui/ui_zork.py
@@ -55,8 +55,10 @@ class Interface(cmd.Cmd):
         except NetworksNoNetworkSetupError:
             # call the config
             self.do_config()
+            return
         except NetworkError:
             print 'Network failure. Try again in a few minutes.'
+            return
 
         data.reverse()
         self._messages.extend(data)
@@ -84,7 +86,7 @@ class Interface(cmd.Cmd):
                 print 'You are in the top of the list.'
                 print
                 return
-            self.cursor -= 1
+            self._cursor -= 1
         else:
             print 'Display WHAT?'
             print '("current", "previous" or "next")'