title: VS create winforms apps only with x86 configuration, why?
body: <p>I have VS.NET 10.0.40219.1 SP1 in 2 computers and when I create a new C# Winform app only do it with Properties/Build/Platform x86, and the target let me choose AnyCpu/x64, but can't set it in the configuration (however, libraries work fine).</p>
  
  <p>If I try to change it in the project file manually, I get a lot of nasty errors. Is this normal behavior, a bug or a problem in my installation?</p>
  
  <p>P.D: When I change manually the project, this happend:</p>
  
  <blockquote>
    <p>Warning   1   The OutputPath property is not set for project '<em>*</em>.csproj'.
    Please check to make sure that you have specified a valid combination
    of Configuration and Platform for this project.  Configuration='Debug'
    Platform='x86'.  This error may also appear if some other project is
    trying to follow a project-to-project reference to this project, this
    project has been unloaded or is not included in the solution, and the
    referencing project does not build using the same or an equivalent
    Configuration or
    Platform. c:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets</p>
  </blockquote>
  
  <p>When I reopen the project, ALL the references become invalid</p>