Thanks Charles. I just found this by registering, deleting myself and trying to re-register.

Could you tell me where the names are held? I thought they would be in used_name_list.cgi but they're not. How do I clear this list so that the members can re-register?

Hope that's not a stupid question. It's been a while since worked on these boards. Is it one of the options in the Maintenance dropdown?

Matt