iPhone: ViewController ends up badly after simulating memory warning
<p>I have a view controller HomeViewController which shows some grids. Once I go to an inner view controller by clicking on a grid, I do a "Simulate memory warning" in the Simulator menu. Now, when I press back button go back to HomeViewController, the grids become bare - white in colour.</p>

<p>Any idea why this is happening ? Any suggestions on how to debug this?</p>

<p>Some more details: The HomeViewController view is itself loads from a NIB. Each of the grid (GridView) loads separately from a Grid.xib.</p>
