ubuntu update: wicd doesn't work anymore

I am running Ubuntu gutsy. I have been using wicd for about a month on my HP Pavilion dv9500 and it was working to manage both the wired and wireless (Intel 4965AGN) network. This morning (Feb. 11) I ran an update and noticed that wicd was updated from the repository. Now, when I bring up the wicd gui and attempt to connect to the wireless network, nothing happens. It does not report failure, it does not close the wired connection, it is as if I am not clicking on "connect".

I made a copy of gui.py and put -d in the first line. I am not a Python user, but I figured that might tell me something. I started it up in a KDE konsole window and then checked "Enable debug mode" in Preferences.
Then I shut it down and started it up again. The wired network remains active from the previous. I can see what appears to be an error message, but I do not understand enough to respond to it.

My home network is the one with ESSID 5026Belmont. It is protected with WPA 1/2. The place for the key in the gui is filled with black dots, so I presume the key survived the update. I do not get a message saying the connection failed, as I got when I was setting wicd up originally and had the wrong key.

Please advise me either (a) how to revert to the earlier version, (b) how to repair this installation, or (c) what further steps to take to diagnose the problem. Thank you.

Here is the output copied from the konsole:
root@ozhp:/tmp/testwicd# ./gui.py
attempting to connect daemon...
success
starting gui.py...
refreshing...
using global dns: 0
disabling ip
disabling dns
dns checkbox toggled False
global dns checkbox toggled False
changing profile...
Home Wired
disabling ip
disabling dns
dns checkbox toggled False
global dns checkbox toggled False
wired profiles found
Number of wireless networks detected: 2
using global dns: 0
ESSID : 5026Belmont
making a new network entry...
disabling ip
disabling dns
dns checkbox toggled False
global dns checkbox toggled False
0
found language key key
using global dns: 0
ESSID : KV9U7
making a new network entry...
disabling ip
disabling dns
dns checkbox toggled False
global dns checkbox toggled False
0
found language key key
Traceback (most recent call last):
  File "./gui.py", line 1234, in connect
    wired.SetWirelessProperty(networkid, "ip", '')
  File "/var/lib/python-support/python2.5/dbus/proxies.py", line 135, in __call__
    **keywords)
  File "/var/lib/python-support/python2.5/dbus/connection.py", line 603, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Python.dbus.exceptions.UnknownMethodException: Traceback (most recent call last):
  File "/var/lib/python-support/python2.5/dbus/service.py", line 625, in _message_cb
    (candidate_method, parent_method) = _method_lookup(self, method_name, interface_name)
  File "/var/lib/python-support/python2.5/dbus/service.py", line 231, in _method_lookup
    raise UnknownMethodException('%s is not a valid method of interface %s' % (method_name, dbus_interface))
UnknownMethodException: Unknown method: SetWirelessProperty is not a valid method of interface org.wicd.daemon.wired