AE8000 setting

Hi Keith. No there's no setting to fix this. Even if there were, it would be some kind of digital correction which will screw up your picture.

But that doesn't mean it can't be fixed. Rather than look for a setting, you need to physically reposition/rotate your projector to square up the image. See my post here to understand what the problem is and how to fix it:

http://www.avsforum.com/t/1458735/alignment-issues-with-sony-hw50es#post_22978766

Keith, it sounds like you already know this but the overscan is just masking the problem and not correcting it in any way. I would guess that any straight lines that appear near the top of your image still look crooked relative to the frame of your screen. But it's certainly better than seeing the crooked edge of the image itself.

Does your mount not have a couple screws that you can loosen to easily make adjustments? Regardless it's still somewhat tricky to fix positioning issues like this.

As for brightness problems with 3D, don't we all? Any 3D technology that requires the use of glasses will inherently reduce brightness vs 2D viewing. That's why reviews of 3D projectors always focus on brightness. I don't personally use 3D that much, but a lot of people will switch to Dynamic picture mode for 3D to compensate for the loss of brightness. You won't get as natural colors, but if you're watching 3D you obviously don't care about picture quality anyway (just kidding ).

Overscan is not only masking the problem. You're ruining the picture somehow.
From wikipedia:
1:1 Pixel Mapping is a video display technique used in some devices, such as LCD monitors. A monitor that has been set to 1:1 pixel mapping will try to display an input source without scaling"
Overscaning by using Digital Zoom: In this case the input is digitally scaled/zoomed so that it becomes larger than the actual display area. If your TV does this and it cannot be disabled you will never achieve 1:1 pixel mapping.