I'm using NSRectFillListWithColors on a CustomView to draw a chess board and so far it works great. Except I just discovered that if I minimize the main window, then restore it, my app crashes with a "EXC_BAD_ACCESS."

NSRectFillListWithColors is being called in my CustomView's drawRect method, I am not forcing this view to redraw. I basically stripped my app down to just the important parts needed to draw a plain ol' chess board. I just don't understand what the problem is.

***Solved***
The NSColor objects I used for alternating the checkered pattern were only in the scope of initWithFrame where I did all my initialization. The array of NSColors passed to NSRectFillListWithColors resulted in copies of those pointers, not new NSColor objects that would persist. Rookie mistake.