New player, odd name?

I just bought this on steam and tried to connect with a server that was promised as newbie friendly, somehow I got the servername as my char name, bit confused how that happened but the server was empty anyway so I looked for one that has people to play with. Skotopolis looks like a good server for me. Oddly enough I have the same name (the name of the previous server)?!?
How can I change that?