Login Problem

Hi everybody,
I'm a newbe on SQL Server;
Here my problem is:
In Server Explorer I create a Data Connection to Nortwind. After Creating
the connection I can reach tables of this database.
But: When I want to configure the dataAdapter the problem occurs:
In the configure wizard "Data Soure Login" window comes.
Altought I know the user "sa" password This error comes:
"Login Failed:Not Associated With a Trusted SQL Server Connection. Invalid
Connection String Attribute."
How can I overcome with this problem.
What may be the reason of this problem.
Thanks for any help.
Arif imen
Prowise Software.Arif,
If your SQL Server is configured to accept Windows Authentication only, you
will get this error message when you attempt to use SQL authentication.
Please configure your DSN to use Windows Authentication and see if that
clear up the issue for you.
Thank you.
Gary Whitley
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