Couple questions: 1) I only have a brightness control. The calibration instructions say to insure the brightness is at the factory default. How do I do this? This is where the brightness setting is now; however, it is usually a little more to the right. It has a mind of its own. 2) Once the calibration process is begun, you have an opportunity to set gamma and white point. Gamma is 2.2; however, should WP be Native or 6500? Thanks for reading!