diff -Nur plague-0.4.4.1-orig/client/client.py plague-0.4.4.1/client/client.py
--- plague-0.4.4.1-orig/client/client.py	2006-02-26 17:47:53.000000000 +0100
+++ plague-0.4.4.1/client/client.py	2007-12-26 15:45:00.000000000 +0100
@@ -340,7 +340,10 @@
 
     def _cmd_update_builders(self, args):
         (e, msg, builder_list) = self._server.update_builders()
-        self._print_builders(builder_list)
+        if e==0:
+            self._print_builders(builder_list)
+        else:
+            print msg
 
     def _cmd_list_builders(self, args):
         (e, msg, builder_list) = self._server.list_builders()
@@ -410,7 +413,7 @@
     try:
         cfg_file = os.environ['PLAGUE_CLIENT_CONFIG']
         if not os.path.exists(cfg_file):
-            print "Config file specified in PLAUGE_CLIENT_CONFIG" \
+            print "Config file specified in PLAGUE_CLIENT_CONFIG" \
                     " environment variable (%s) did not exist." % cfg_file
             sys.exit(1)
     except KeyError:
diff -Nur plague-0.4.4.1-orig/server/UserInterface.py plague-0.4.4.1/server/UserInterface.py
--- plague-0.4.4.1-orig/server/UserInterface.py	2005-11-28 18:46:21.000000000 +0100
+++ plague-0.4.4.1/server/UserInterface.py	2007-12-26 15:44:34.000000000 +0100
@@ -585,7 +585,7 @@
     def update_builders(self):
         user = AuthedXMLRPCServer.get_authinfo()
         if not user or not user.server_admin:
-            return (-1, "Insufficient privileges.")
+            return (-1, "Insufficient privileges.",[])
         return UserInterface.update_builders(self)