This may help ;)There are 2 items that allow the transition time to be changed:[GRAPHICS]DAY_THRESHOLDNIGHT_THRESHOLDacceptible values are 0 to 65535. Defaults:DAY: 32768NIGHT: 4096These represent the amount of 'ambient' light at the ends of the day/night blend threshold. Zero is perfect dark, 65535 is full day sun at noon in the summer.

Hi David, you have to activate "nView" then to go "Hot Keys" tab and "Display Settings" and select "Activate display brightness" twice one shortcut for "increase" and one for "decrease". (note: I use Ctrl Shift F8 - F9.Pierre