I have not used HA in cluster mode before so I am not sure if this is a bug but it seems like one. I have my cluster set up with two nodes, both running 8.164 in a VMWare Virtual Machine with 512GB RAM and 3 virtual NICs. When I go to the Status tab under HA the screen keeps jumping between what is shown normally on the Status tab and what is normally shown on the System Status tab. It is also showing my slave node to have the name unknown. I set the name on the slave node name to JPS-TestASG02 on initial config of the cluster. I also tried changing from the Status tab but it keeps saying unknown. One more thing, it is not allowing me to change the refresh interval. I have attached a couple screen shots. I am running Firefox 4.0.1 on Win 7 to view WebAdmin. I hope I included everything you need but let me know if you need more information. Thanks.
Joe