I have a 2 node cluster that has been running for a year, and is still up and working fine. However, a yum update at some point broke system-config-cluster and it cannot load the management tab anymore, because it *thinks* the node is not part of a cluster, yet, all of the definions are there and I can modify them and save, but cannot publish the changes to the cluster using the tool. Has anyone else experienced this problem, or know what may be wrong?