Focus Not Going to New Window in Unity

VMWare Fusion 5.0.1

Windows 7 Guest (though I think this is not a guest issue and would occur with other OS - haven't tested it though)

OSX 10.8.2

Whenever a new window is opened in a guest while in Unity mode, it goes to the background and not a foreground.  For Example:

1.  Run Windows Explorer in Windows 7

2.  Double click a PDF file

3.  Acroread does open, but it does not gain focus and gets placed behind the current window.

Please note that it is not just one application.  I have the same issue with IM and other programs.

Does anyone know how I can resolve this?

Thanks.