[Users] Remove Default Cluster

Morning, For some reason after installation, not sure if it was due to DNS failure, I have two clusters listed in oVirt. The Default has no Hosts, hence no Guests, and I would like to remove it. However, since it is the default, it will not allow me to remove it. Anybody able to assist in this matter ... ? oVirt 3.1 on Fedora 16 64bit. Regards