how to create a setup for window form application including

Question

i have created a simple window form application project that have only 2 form..
1st one for login in which it'll check the userid n password from database.if both are correct then it will go to 2nd form.
now i want this project to run in another computer.
i created a setup file but its showing some error regarding the database instances connection..
so if anyone can tell me in details how to create the setup file then it'll b a great help..
thanx in advance..