(SEE ATTACHED IMAGE) I have two cameras, sort of a picture-in-picture, except I want to toggle between full screen and a "windowed" screen. I'm making the windowed screen via the camera.pixelRect property. This works fine...until I add an NGUI element, at which point the disabled full screen camera doesn't clear the image from the screen after it's disabled. Please please help.

EDIT: I've discovered that I can fix this by changing any of the values of Normalized View Port Rect of the NGUI camera by some insignificant amount, such as changing the W param from 1 to 1.001. This gets it working, but I'd sure like a non-hacky way of solving this. Any ideas?