title: vim key map suddenly changed. How to change it back?
body: <p>Starting just today, after editing a source file for a few minutes vim suddenly responds differently to my keys than I expect it to.  I don't have many details as I saved and quit lest it eat my file.</p>
  
  <p>I'm concerned it could be something wrong with the keyboard on my Acer Inspire E15, but typing this post works just fine.</p>
  
  <p>One thing that happened is that entering ^P (Constrol-P) pasted a word, rather than moving to the previous line.</p>