Try putting a . (yes a .) in the box. This indicates the default SQL Server instance. Does this help?

Also try to run this from a dos command line.

osql /E /q "Select * from northwind.dbo.customers"

Does it return any results?

Once its finished use the exit command to get back to the command line.

Jon

>I made a file and called it Test.udf. I put the file in the Data folder.
>
>Error message: "SQL Server does not exist or access denied."
>
>The problem here is that I don't know what to call the SQL Server, as it does not show up in the dropdown list. Its instance name is called "SQLExpress".
>
>Cecil