Installing 7.0 Not Connecting to SQL 2005

[gknecht]

Installing ablecommerce and enter correct db connection info on configuration1.aspx page. Upon submit, it appears a connection is made, but nothing happens and returned to page with following message.

The specified database connection could not be opened.

followed by my connection string.

I know connection string is correct, and have tested elsewhere. Any ideas.

[mazhar]

Did you provided the user information properly.

[jmestep]

I just had it happen on an install I did for someone and when SQL Server had been installed, it had been configured for Windows authentication only. Once I changed it to mixed mode, the install connected OK.