In Microsoft Word 2011, Shift seems to be acting as a Command - how do I make it stop?
It's possible you could try resetting the default shortcuts from the settings...

This is an excerpt from a Microsoft support article on the Office shortcut settings...


  Reset all keyboard shortcuts
  
  On the Tools menu, click Customize Keyboard.
  
  To restore keyboard shortcuts to their original state, click Reset All, and then in the confirmation message, click Yes.
  
  NOTE   Keyboard shortcuts for tasks are reset.


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