title: Why does F10 (step over) in Visual Studio not work?
body: <p>I'm debugging a (web) project in Visual Studio 2008. I'm hitting a breakpoint. F10 continues to the next line, as expected, but the next F10 just stops debugging and the code continues without any more debugging (like pressing F5). Why is this happening?</p>
  
  <ul>
  <li>I have tried 'clean solution'.</li>
  <li>Other breakpoints sometimes(!) skipped, even in the same method</li>
  </ul>
  
  <p>Any clues?</p>