NetBoot Error

We have an issue on our 10.5.2 server. Dark grey button for NetBoot in Sever Admin, wants to refresh with this error: "Try to refresh the view ("our server".local/NetBoot). Report the problem to the administrator if it persists. (NIL_RESPONSE_ERR (*** -NSCFDictionary setObject:forKey:: attempt to insert nil key))" Using the command line: sh-3.2# serveradmin status netboot netboot:state = "RUNNING" sh-3.2# serveradmin stop netboot netboot:state = "STOPPED" sh-3.2# serveradmin start netboot NFS Active User Info: /Library/NetBoot/NetBootClients0 NFS Requests Bytes Read Bytes Written Idle User IP Address /Library/NetBoot/NetBootSP0 NFS Requests Bytes Read Bytes Written Idle User IP Address netboot:state = "RUNNING" sh-3.2# serveradmin stop netboot netboot:state = "STOPPED" sh-3.2# serveradmin start netboot NFS Active User Info: /Library/NetBoot/NetBootClients0 NFS Requests Bytes Read Bytes Written Idle User IP Address /Library/NetBoot/NetBootSP0 NFS Requests Bytes Read Bytes Written Idle User IP Address netboot:state = "RUNNING" sh-3.2# serveradmin fullstatus netboot 2008-09-01 11:15:19.138 serveradmin78231:10b Exception in doCommand: *** -NSCFDictionary setObject:forKey:: attempt to insert nil key netboot:error = "NIL_RESPONSE_ERR (*** -NSCFDictionary setObject:forKey:: attempt to insert nil key)" sh-3.2# What is the fullstatus picking up that the normal status is not? Even after restarting netboot from the cli the button is still grey in Server Admin. And we cvannot netinstall or netboot to the server. It would be nice to know how to fix this without restarting the server if possible. :(