Stephen,

Make sure ASPNET has been added to MSDE as a user with sufficient rights.

>I have a trusted connection SQL Server security inplace on both my laptop and the MSDE that I put up on a clients test server. When I run from my laptop things are good. When I try to use the identical data from his server I get an error:
>
>Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.
>
>I am part of the domain and I have rights. I had an admin create an account for ASPNET, and I placed it in the server list of users. Gave it dbo rights and still no go.
>
>Any ideas on this security thing?
>
>TIA
>
>__Stephen