creating a database in SQL 2005 - using windows 2003

when i try to create a new database i get a error: The server could not
load DCOM

what is wrong and how can i fix it?

i have updated mssql/win 2003 with the lates updates

Rgds

BobbyHi Bobby

This usually has something to do with user permissions. Please ensure
that your database login has permissions to create new databases. Also
ensure that you have sufficient Windows user permissions to the
directory where SQL Server is trying to create the .mdf and the .ldf
file.

Cheers
Louis