since we have an AMOLED screen, is there any info about pulse width modulation? I've heard about some people having their eyes tired while working with AMOLED _not being at full backlight level_. can this be an issue with Pro1 too? usually they claim that screen flickering/shimmering is a problem for _any_ AMOLED / OLED and if you want to avoid this - choose IPS. any thoughts?