As we found out today, the default settings for Visual Studio 2005 Professional are to not show the solution by default. This means that as soon as you add a project to a blank solution, the solution disappears and you are unable to add another project.
This is easy to fix though:
Make sure that you have the option to “Always show solution” set in your IDE. To do this, goto tools->options->Projects and Solution and check the “Always show solution” option.
I don’t understand though, that this is a default setting… wo could possibly live in the Professional environment with only one project per solution?? For an express edition, I could imagine this to be useful.. but otherwise, No!