connect to server name 2005!

First time I am using sql server 2005.
What is the default server name' I can not see anything in managment
studio.
whenever i tried to connect OR create database through SQL sever
Management studio, it asked me:
server type: (here i select Database Engine)
server Name : ( '')
Authentication : which one I have to use? (Windows Authentiction is by
default, another is SQL server Authentication,)...
I don't know what to do with server name . Please advise.Hi,
please do not mulitpost, answered in public.sqlserver
HTH, jens Suessmeyer.
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