Win7 x64 Pro.
After using VS2012 RC for several days, it crashed while building a C# project.
It crashed on every subsequent attempt to start it.
I followed the instructions in this post: http://social.msdn.microsoft.com/Forums/en-US/vssetup/thread/6fadba03-5b07-47b1-9f5e-ed207462d411/
VS2012 RC continued to crash on startup.
I have uninstalled/resinstalled several times.
I have run Setup->Repair.
Nothing has resolved the crash at startup problem.
When running "devenve.exe /safemode", I get this error:
"The 'Microsoft.VisualStudio.Labs.SolutionNavigatorPackage, SolutionNavigator, Version=10.0.0.2, Culture=neutral, PublicKeyToken=blah' package did not load correctly."