Can't CREATE database win7 [kal_auth , kal_db] !!!!!!!!!!!!!

Hello Guys Now I SetUp SQL 2005 and when i CREATE New DataBase I Get ERROR

Check Screen Shot Please and help me

thx

http://s2.postimage.org/g9wgnw4qh/Untitled.jpg

try to run it as admin

go to C:\Program Files\Microsoft SQL Server\MSSQL10.SQLEXPRESS\MSSQL\DATA , should already there's kal_auth , kal_db , delete them and try to create them agine ..