[thelist] .NET 2.0 Login Control Error

[Casey Crookston]

I am new to 2.0.  I was excited to read about the new security features
that have been included, and I'm trying to implement my first web site
using them.  Using the Website Administraiton Tool, I switched to Forms
authentication and added a new user.  As it was supposed to, two new
files appeared in the Add_Data directory: ASPNETDB.MDF and
aspnetdb_log.ldf.  I then created a new directory in the root directory
and called it "admin" and using Access Rules in the Website
Administraiton Tool, I set it to deny anonymous users.  Then, in the
root directory I created a login.aspx page and dropped a Login control
onto that page.  

Now, according to the tutorial I am reading
(http://aspnet.4guysfromrolla.com/articles/120705-1.aspx), I should now
be able to login to my Admin directory using the login.aspx page.
However, when I try to login, I get this error: 

Cannot open user default database. Login failed.
Login failed for user 'LocalHost\ASPNET'. 

Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information
about the error and where it originated in the code. 

Exception Details: System.Data.SqlClient.SqlException: Cannot open user
default database. Login failed.
Login failed for user 'LocalHost\ASPNET'.
 

I've been Googling the error for a couple hours now and I'm getting no
where.  Can anyone help?

Thanks, 

Casey