MCC hangs with Jamu-related error on frontend (new install)

Binary package hint: mythbuntu-control-centre

I have done a clean install of Mythbuntu 10.04 on an Acer Revo, and have selected frontend-only during install.

When I launch MCC I get errors related to Jamu and backend:

tony@myth-front:~$ mythbuntu-control-centre
WARNING: With any -M option Jamu and its MCC plugin must be run on a MythTV backend,
Error(Could not find setting 'BackendServerIP' on host 'myth-front')
CRITICAL: Jamu configuration plugin must be run on a MythTV backend. Local host (myth-front) is not a MythTV backend.

WARNING: Error loading plugin <class 'jamuconfig.JamuconfigPlugin'>
Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/MythbuntuControlCentre/plugin.py", line 75, in find_plugin_instances
    self._instances[plugin] = plugin()
  File "/usr/share/mythbuntu/plugins/python/jamuconfig.py", line 100, in __init__
    raise JamuconfigPlugin_error(errormsg)
JamuconfigPlugin_error: Jamu configuration plugin must be run on a MythTV backend. Local host (myth-front) is not a MythTV backend.

Reading package lists... Done
Building dependency tree
Reading state information... Done

When I try to change the SQL pin for remote access to the backend the MCC GUI hangs with these errors in the terminal:

Traceback (most recent call last):
  File "/usr/bin/mythbuntu-control-centre", line 264, in summaryApply
    plugin.user_scripted_changes(self.reconfigure_user[item])
  File "/usr/share/mythbuntu/plugins/python/mysql_configuration.py", line 161, in user_scripted_changes
    if item == "securitypin":
NameError: global name 'item' is not defined

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: mythbuntu-control-centre 0.62-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-24.43-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Sat Sep 25 10:39:48 2010
InstallationMedia: Mythbuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: mythbuntu-control-centre