>Maybe I'm missing the boat on your question here....
>can't you just go into the app.config file and remove the text containing the connection string? That's all I do. Usually I replace it with something different.

Yes, but it's a pain to do it every time you go to build a setup. And if you build frequently, it's easy enough to forget.

I found even more problems with this when I looked in side of my DLLs and found the connect string for my DBML was being embedded into the dll. What I ended up doing for now is to make my ConnectString generic:

connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=cds;Integrated Security=True"

But that seems like a very poor solution.