title: vim "syntax on" does not work
body: <p>Here is my <code>.vimrc</code></p>
  
  <pre><code>  1 syntax on
    2 set ts=4
    3 set number
    4 set smartindent
    5 set shiftwidth=4
  </code></pre>
  
  <p>However, I tried to edit <code>HelloWorld.java</code> and <code>HelloWorld.c</code>. Both have pure regular black font. No any highlighting!</p>
  
  <p>I also tried <code>:syntax on</code> after the vim is open, but no luck.</p>
  
  <pre><code>\&gt;vim -version
  VIM - Vi IMproved 7.3 (2010 Aug 15)
  
  \&gt;cat /etc/*-release
  openSUSE 11.4 (x86_64)
  VERSION = 11.4
  CODENAME = Celadon
  </code></pre>