Bazaar Explorer does not open

Hello,

We're running into a problem on a Windows 7 machine where the Bazaar Explorer does not open. The contents of the log are:

Thu 2012-02-02 13:16:30 -0700
0.078 bazaar version: 2.4.2
0.078 bzr arguments: [u'explorer']
0.094 looking for plugins in C:/Users/Skip/AppData/Roaming/bazaar/2.0/plugins
0.094 looking for plugins in C:/Program Files (x86)/Bazaar/plugins
1.295 encoding stdout as osutils.get_user_encoding() 'cp1252'
6.225 Deprecated method called
Called from:
  File "C:/Program Files (x86)/Bazaar/plugins\explorer\lib\explorer.py", line 165, in __init__
  File "C:/Program Files (x86)/Bazaar/plugins\explorer\lib\explorer.py", line 257, in _refresh_user_configuration
  File "C:/Program Files (x86)/Bazaar/plugins\explorer\lib\explorer.py", line 264, in get_default_editor
6.256 loading explorer extensions for clothes ['Bazaar support', 'Register on Launchpad']
6.318 explorer extensions provided by the colo plugin in C:/Program Files (x86)/Bazaar/plugins/colo/explorer
7.254 failed to load system host keys: [Errno 2] No such file or directory: 'C:\\Users\\Skip/.ssh/known_hosts'
7.270 Traceback (most recent call last):
  File "bzrlib\commands.pyo", line 946, in exception_to_return_code
  File "bzrlib\commands.pyo", line 1150, in run_bzr
  File "bzrlib\commands.pyo", line 699, in run_argv_aliases
  File "bzrlib\commands.pyo", line 721, in run
  File "bzrlib\cleanup.pyo", line 135, in run_simple
  File "bzrlib\cleanup.pyo", line 165, in _do_with_cleanups
  File "C:/Program Files (x86)/Bazaar/plugins\explorer\lib\commands.py", line 162, in run
  File "C:/Program Files (x86)/Bazaar/plugins\explorer\lib\explorer.py", line 243, in __init__
  File "C:/Program Files (x86)/Bazaar/plugins\explorer\lib\explorer.py", line 1976, in do_welcome
  File "C:/Program Files (x86)/Bazaar/plugins\explorer\lib\explorer.py", line 690, in changed_view
  File "C:/Program Files (x86)/Bazaar/plugins\explorer\lib\explorer.py", line 1085, in _get_hosted_web_url
  File "C:/Program Files (x86)/Bazaar/plugins\explorer\lib\hosted_url_resolver.py", line 44, in get_branch_url
  File "C:/Program Files (x86)/Bazaar/plugins\launchpad\__init__.py", line 213, in _get_web_url
  File "C:/Program Files (x86)/Bazaar/plugins\launchpad\__init__.py", line 200, in _possible_locations
  File "bzrlib\branch.pyo", line 207, in open_containing
  File "bzrlib\bzrdir.pyo", line 1302, in open_branch
  File "bzrlib\branch.pyo", line 2304, in open
  File "bzrlib\bzrdir.pyo", line 828, in open
  File "bzrlib\bzrdir.pyo", line 863, in open_from_transport
  File "bzrlib\bzrdir.pyo", line 1590, in open
  File "bzrlib\remote.pyo", line 293, in _open
  File "bzrlib\remote.pyo", line 356, in __init__
  File "bzrlib\remote.pyo", line 368, in _probe_bzrdir
  File "bzrlib\remote.pyo", line 375, in _rpc_open_2_1
  File "bzrlib\remote.pyo", line 56, in _call
  File "bzrlib\smart\client.pyo", line 132, in call
  File "bzrlib\smart\client.pyo", line 145, in call_expecting_body
  File "bzrlib\smart\client.pyo", line 90, in _call_and_read_response
  File "bzrlib\smart\client.pyo", line 63, in _send_request
  File "bzrlib\smart\protocol.pyo", line 1309, in call
  File "bzrlib\smart\protocol.pyo", line 1133, in _write_end
  File "bzrlib\smart\protocol.pyo", line 1099, in flush
  File "bzrlib\smart\medium.pyo", line 395, in accept_bytes
  File "bzrlib\smart\medium.pyo", line 977, in _accept_bytes
  File "bzrlib\smart\medium.pyo", line 793, in _accept_bytes
  File "bzrlib\smart\medium.pyo", line 817, in _ensure_connection
  File "bzrlib\transport\ssh.pyo", line 332, in connect_ssh
  File "bzrlib\transport\ssh.pyo", line 287, in _connect
  File "bzrlib\transport\ssh.pyo", line 257, in _raise_connection_error
SocketConnectionError: Unable to connect to SSH host gdb.az.celestech.com; [Errno 11004] getaddrinfo failed

The host (gdb.az.celestech.com) has gone away and been replaced with a new machine but I can't find any config file or anything where Bazaar would be picking up the old address.

I removed the existing id_rsa file hoping that would help, but it did not. I have uninstalled, reinstalled, and even upgraded Bazaar, that also had not helped.

Any idea how I could find where it might be referencing the old address?

Thanks!
Brian Cox