SQL Express

When connecting to SQL Express you must postfix the server name with "\SQLExpress".

The following formats are acceptable:

(local)\SQLExpress
.\SQLExpress
<MyComputer>\SQLExpress where <MyComputer> is the network name of your PC

You must make the database with SQL Server Management Studio.

If you make the database with Visual Studio inside of a project, DBSD won't be able to connect. Make the database with Management Studio first and connect/attach to the database from inside Visual Studio.