When you say you can open the document and print it, I asusme you mean you have a document that you want to use a mail merge to add in a name, address, etc. to send the letter to all the recipients, right? So why not go though the mail merge wizard in Word to connect to the database?
Better yet, I if the document does not change often, why not create a report in Access and use that to print from?
Just a thought.
"If it's stupid but works, it isn't stupid."
-Murphy's Military Laws