title: iPhone crashing when presenting modal view controller
body: <p>I'm trying to display a modal view straight after another view has been presented modally (the second is a loading view that appears).</p>
  
  <pre><code>- (void)viewDidAppear:(BOOL)animated {
      [super viewDidAppear:animated];
      // Show load
      LoadViewController *loader = [[LoadViewController alloc] init];
      [self presentModalViewController: loader animated:NO];
      [loader release];
  }
  </code></pre>
  
  <p>But when I do this I get a "Program received signal:  "EXC_BAD_ACCESS"." error.</p>
  
  <p>The stack trace is:</p>
  
  <pre><code>0  0x30b43234 in -[UIWindowController transitionViewDidComplete:fromView:toView:]
  1  0x3095828e in -[UITransitionView notifyDidCompleteTransition:]
  2  0x3091af0d in -[UIViewAnimationState sendDelegateAnimationDidStop:finished:]
  3  0x3091ad7c in -[UIViewAnimationState animationDidStop:finished:]
  4  0x0051e331 in run_animation_callbacks
  5  0x0051e109 in CA::timer_callback
  6  0x302454a0 in CFRunLoopRunSpecific
  7  0x30244628 in CFRunLoopRunInMode
  8  0x32044c31 in GSEventRunModal
  9  0x32044cf6 in GSEventRun
  10 0x309021ee in UIApplicationMain
  11 0x00002154 in main at main.m:14
  </code></pre>
  
  <p>Any ideas? I'm totally stumped! The loading view is empty so there's definitely nothing going on in there that's causing the error. Is it something to do with launching 2 views modally in the same event loop or something?</p>
  
  <p>Thanks,</p>
  
  <p>Mike</p>
  
  <p>Edit: Very strange... I have modified it slightly so that the loading view is shown after a tiny delay, and this works fine! So it appears to be something within the same event loop!</p>
  
  <pre><code>- (void)viewDidAppear:(BOOL)animated {
      [super viewDidAppear:animated];
      // Show load
      [self performSelector:@selector(doit) withObject:nil afterDelay:0.1];
  }
  
  - (void)doit {
      [self presentModalViewController:loader animated:YES];  
  }
  </code></pre>