sql server management studio problem

hello friend on w7 i configured my sql sever and ssms but while going through ssms it's producing following error...please re开发者_JS百科solve my problem.

TITLE: Microsoft SQL Server Management Studio Express

The database model is not accessible. (Microsoft.SqlServer.Express.ObjectExplorer)

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As I understand you don't have permissions. May be it will help you: http://social.msdn.microsoft.com/Forums/en/sqlexpress/thread/8b0ba6de-2cb2-4378-aa90-3f5a6551a734