so keep debugging then. 

How do you know the white view is screen-sized and has no superview? Actually a 
UIView which you can see and yet has no superview is probably just the UIWindow 
itself. 

How about the view which has just been loaded? Does it have a superview? 
Probably won't at that point, it's only been loaded, not moved into place. Go 
override the viewWillAppear:/viewDidAppear: methods and see if they get called. 

One question, there's no non-standard UIViewController usage here right? ie you 
have just ONE view controller for each screen, not trying to use more than one 
on the screen at the same time (with the exception of course of a tab or 
navigation controller which handles that). Transitions which put the new VCs on 
the screen are the usual presentModalViewController .. or push methods right? 
What's showing on the screen when this viewcontroller of yours is getting blown 
away by a memory warning, and how did that new content get there? 

On Mar 2, 2012, at 6:08 AM, G S wrote:

> OK, after our controller's view gets blown away on the memory warning, it
> does appear to be reloaded from the nib when it's time for redisplay.  At
> least the IBOutlet members are non-nil in viewDidLoad (I nilled them on
> viewDidUnload).
> 
> So it appears that the controller's view is reloaded from the nib, but
> being displayed as a blank white screen.  The white view itself is
> screen-sized and has no superview.  What the hell?
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