title: Xcode Instruments - Enable NSZombie Detection? Where is it?
body: <p>I have watched this video
  <a href="http://www.markj.net/iphone-memory-debug-nszombie/" rel="nofollow">http://www.markj.net/iphone-memory-debug-nszombie/</a></p>
  
  <p>The guy shows an option called Enable NSZombie Detection on Allocations inside instruments, but my Instruments doesn't shows this option. This guy's video was done using a one year old version of Instruments and I am using Xcode 3.2.5. Do you guys know where this option is now? How can I enable it for iPhone apps?</p>
  
  <p>thanks</p>