title: Jump with Ctrl-I doesn't work in my MacVim, but Ctrl-O works?
body: <p>Jump with <kbd>Ctrl</kbd><kbd>I</kbd> doesn't work in my Vim, but <kbd>Ctrl</kbd><kbd>O</kbd> works.</p>
  
  <p>It's weird, <code>verbose map &lt;c-i&gt;</code> or <code>verbose map &lt;c-I&gt;</code> shows below:</p>
  
  <pre><code>s  &lt;Tab&gt;         &lt;Plug&gt;snipMateNextOrTrigger
      Last set from ~/.vim/bundle/vim-snipmate/after/plugin/snipMate.vim
  x  &lt;Tab&gt;         &gt;gv
      Last set from ~/.vim/plugin/settings/Settings.vim
  n  &lt;Tab&gt;         v&gt;
      Last set from ~/.vim/plugin/settings/Settings.vim
  </code></pre>
  
  <p>When I press <kbd>Ctrl</kbd><kbd>I</kbd>, the current line will be indented, and vim goes to Visual Mode.</p>
  
  <p>I tried to add <code>unmap &lt;c-i&gt;</code> to ~/.gvimrc, but it failed, when macvim starts</p>
  
  <pre><code>Error detected while processing /Users/dfang/.vimrc:
  line   83:
  E31: No such mapping
  </code></pre>
  
  <p>How can I get back my <kbd>Ctrl</kbd><kbd>I</kbd>, and how can I remap <kbd>Ctrl</kbd><kbd>O</kbd> to <kbd>Ctrl</kbd><kbd>-</kbd> (left from <kbd>=</kbd> key) ?</p>