Adobe Acrobat Writeable Web Forms

I have a writeable form I created in Adobe Acrobat writer and is displayed and used on our Intranet. A user can access the form, fill in the fields, and print it. However, when they close the intranet connection and then re-open and re-vist the form, the old info is still there. They are not saving it (tried it myself). How do I prevent this from happening? I want clear fields every time it's accessed.