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