Microsoft OLE DB Provider for ODBC Drivers error '80004005'

[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

This error usually indicates that you have made an error while editing the setup.asp or web.config file.  The connection string you have chosen to use is inappropriate, or some parameter is incorrect (check your DSN).  The basic connection to your database could not be established.  Edit your setup.asp or web.config file, see the installation guides for more on the steps for editing these files.