Error: SQL Server Setup could not connect to the database service for server configuration.

There is much more text to the actual error posted on subject line, it is: TITLE: Microsoft SQL Server 2005 Setup ------------------------------ SQL Server Setup could not connect to the database service for server configuration. The error was: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified Refer to server error logs and setup logs for more information. For details on how to view setup logs, see "How to View Setup Log Files" in SQL Server Books Online....(<a href="http://sqlserver-qa.net/blogs/tools/archive/2009/07/08/error-sql-server-setup-could-not-connect-to-the-database-service-for-server-configuration.aspx">read more</a>)<img src="http://sqlserver-qa.net/aggbug.aspx?PostID=5805" width="1" height="1">