VWD can't create SQL Server database

When I attempt to add a SQL Server database to a website project (via add new items), I get the following error:

"Connections to SQL Server database files (.mdf) require SQL Server 2005 Express or SQL Server 2008 Express to be installed and running on the local computer. The current version can be downloaded from..."

This is despite having installed SQL SErver Express 2008 - and seeing it running under services.

A number 开发者_Python百科of other instances of SQL have been on the machine in the past although they have been uninstalled.

I have tried reinstalling SQL & VWD several times to no avail.

Check the "SQL Server Instance Name" which is setup in:

Tools --> Options --> Database Tools --> DataConnections

Verify that the instance name matches your SQL08 instance.