It sounds like a VS/MSBuild issue when building the solution from the command-line. You can verify that by checking the 'Show command-line' checkbox on the Options tab of the Make VS.NET action, rebuilding, then copy/pasting the command-line used from the Output pane to a Command Prompt and running there. If you're using MSBuild (the default), you could try selecting/entering 'devenv' in the Override field on that tab to see if it works better.
Here is another possibility:
http://forums.microsoft.com/MSDN/Sho...57091&SiteID=1