Ah, I think it may actually still be there, but if you try to reconfigure the connection then it will want you to type the password in again to ensure you have the right to change connection details.
I think if you create a connection by dragging the database onto a form then look at the connection string property you will find that the password is still there (provided the last time you configured the connection you entered a password and checked the box).
Heres a link that details the dialogue box that may provide usefull info.
http://msdn.microsoft.com/library/de...sdialogbox.asp