sql 2005 management studio express hata mesajı

sql 2005 management studio express de bir data base oluşturmak istediğimde aşağıdaki hatayı alıyorum

adımların şu şekilde

In the Object Explorer pane, right‐click the Databases entry and select New
Database. You are presented with the New Database dialog.
 Enter a name (for example ViewComposer) in the Database name field and click
OK. Your database is added under the Databases entry in the Object Explorer. 

 Hata mesajı ;

Create failed for Database 'ViewEventsDB'.  (Microsoft.SqlServer.Express.Smo)

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.Express.ConnectionInfo)

CREATE DATABASE permission denied in database 'master'. (.Net SqlClient Data Provider)