Per tutti quelli che mi hanno fatto una “capa tanta” con sta menata e per il sottoscritto che un po’ la “capa tanta” se l’è fatta da solo Smile with tongue out, è uscita una hotfix per risolvere il fastidiosetto problema che i menù contestuali di VS2010 avevano le scrollbar anche quando non servivano:
We’ve been looking into the widely-reported problem with Visual Studio 2010 where context menus contain scrollbars even when there is sufficient screen real estate to show the menu without one. We’re pleased to announce that there are patches available for Visual Studio and Windows Presentation Foundation that fix this problem. You will need to install both patches to fix this issue
  1. Visual Studio 2010 patch: http://code.msdn.microsoft.com/KB2345133
  2. Windows Presentation Foundation 4.0 patch: http://code.msdn.microsoft.com/KB2413613
    1. X86: NDP40-KB2413613-x86.exe.
    2. X64: NDP40-KB2413613-x64.exe.
If you have any additional questions, post here (on the blog comment section) and we will follow up to ensure a bug is filed or a solution is found.  
Fonte: http://blogs.msdn.com/b/visualstudio/archive/2010/10/14/hotfixes-available-for-scrolling-context-menu-problem.aspx
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