How to fix the "Login failed for user" error when using Visual Studio and SQL Server

I have very little SQL Server experience.  When I use the Visual Studio.NET Walkthroughs Chapter 4 example I get the following error:

Login failed for user 'MARTIN-7C3B18F3\IUSR_MARTIN-7C3B18F3'

SQL Server and the web form app I am building are on the same machine.

I am attempting to populate a datagrid that is bound to a dataset that is filled by the codebehind.
Everything works until I try to run the app.

I have no idea what to change to avoid this error.


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Bob LearnedCommented:
What is the authentication mode for SQL Server?


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DovbermanAuthor Commented:
I called Microsoft support after waiting 5 days for a response from Experts Exchange.  There seems to be a great need for ASP.NET experts here.

The SQL Server authentication mode was the key to this issue.


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