Network Manager suddenly doesn't like my keys

["Michael Schwager" <mschwage gmail com>]

Hi,
I'm running Kubuntu Edgy and I have gotten my Thinkpad T60 up and running using KNetworkManager.  Versions:
uname -a : Linux rodin 2.6.17-10-386 #2 Fri Oct 13 18:41:40 UTC 2006 i686 GNU/Linux
wpa_supplicant: 
0.5.4
network-manager: 0.6.3-2ubuntu6 

Everything has been working great for about 3 weeks.  Suddenly, I fire up Linux and I am not connecting.  I need to kill NetworkManager, open up KDE Wallet, clear out the networkmanager entry, restart network manager, and reenter my WPA shared key.  Then it works.

Here's what's in my daemon.log.  Can anyone tell me why it suddenly decided to not work?  Why the bit about a new key?  I've done this twice... my key should be fine.  ...Why would it break?  Help, I'm confused!

Thanks.
--- Log entry ---
Jan 29 15:27:00 rodin NetworkManager: <information>^IActivation (eth1) Stage 2 of 5 (Device Configure) starting...
Jan 29 15:27:00 rodin NetworkManager: <information>^IActivation (eth1/wireless): access point 'Mike y Bovi' is encrypted, but NO valid key exists.  New key needed.
Jan 29 15:27:00 rodin NetworkManager: <information>^IActivation (eth1) New wireless user key requested for network 'Mike y Bovi'.
Jan 29 15:27:00 rodin NetworkManager: <information>^IActivation (eth1) Stage 2 of 5 (Device Configure) complete.
Jan 29 15:27:01 rodin NetworkManager: <WARNING>^I nm_dbus_get_user_key_for_network_cb (): nm_dbus_get_user_key_for_network_cb(): dbus returned an error.   (org.freedesktop.DBus.Error.NoReply) Message did not receive a reply (timeout by message bus)


-- 
-Mike Schwager