1. I don't have any options under Scaling. Maintain Display Scaling is checked and cannot be changed.
2. I can connect via HDMI, but I don't have a cable. I have a straight cable for VGA taken from some little monitor.
3. If you are referring to Picture Options for TV settings, I don't have any other than color tone and size (using 16:9). If you are referring to Screen Settings, I only have screen positional adjustments (which is entirely irrelevant to this discussion). There's nothing wrong with my screen position or TV options in general.....there's everything wrong with the displaying of images. If I have an image that is 4608x3456, it will display as a perfect square.