How to get YAST to manage Network interfaces again

I have a brand new SLES 11 SP2 server that I have been having some multi-io issues with. In the process of troubleshooting the issues, I needed to unbind NIC 4 (em4) and bind another NIC. I did that through Yast / Network Devices / Network Settings just fine. Then after testing I wanted to go back to the original setup. I was able to delete the binding for the one NIC but then when I tried to edit the other NIC in Yast, I got the spinning hourglass and then nothing. The edit dialog did not come up. I was able to manually change the config files but even after a reboot, Yast will not allow me to edit the NICs. How can I reset Yast so that it will work correctly for network settings?