I'm currently writing up a document for my company on how to use mail merge and connect to an SQL server database.

However, once you select the database, you are asked to authenticate your user name and password, twice.

you enter it the first time, the dialog window resets quickly and you need to enter it again. it's not like this is a big problem but if I'm writing up a document about this I figure that I should at least know why this is necessary to do.

Any help is appreciated, thanks.