I have been looking at the Sony KDF-E42A10. It is an LCD rear projector. It seems to have a tremendous picture at the store but I have heard to beware of SDE in LCD rear-projectors. I did notice some pixilation but what excactly is meant by SDE? I did notice small squares but that was when I got up within a few feet of the screen. Are the pixels the screen door effect or is SDE literally the small blocks when you put your face up to the screen? Can someone help clarify? And while you're at it, any thoughts on the Sony 42'' I'm looking at?