KNetworkManager Stopped Working

[Rick Knight]

At some point in the last 2 weeks knetworkmanager stopped working. I 
didn't notice until I tried to use my wireless connection at home. I had 
been connected to my wired network at work and all seemed to be working. 
Now knetworkmanager does not see or configure my wireless nic. Until a 
couple of weeks ago it did see my wireless and my wired and allowed me 
to move between them without any errors or problems. I've found a work 
around using wpa_supplicant but I would like to get knetworkmanager 
working again.

I'm using Kubuntu Feisty Fawn on an HP nc 8230 Notebook PC with an 
IPW2200 wireless NIC.
The wireless networks I connect to are WPA-PSK-TKIP and they work fine 
except for one network that uses WEP. I cannot connect to it using 
wpa_supplicant.
Also, I've lost the knetworkmanager icons in system tray.
I can think of nothing I have installed over the last couple of weeks 
that might have caused this problem, but that is a possible.

Thanks for any help.

Rick