Just to start off with a nice post, before I get into the not-so-nice tint issues of the U2410.. Activating tests mode on the U2410.. Make the Touch Sensor (AKA Exit) button light up (You don't have to press it, just have it light up) Now press and hold where the Menu and Preset Modes buttons are for 3 seconds.. You've now activated a U2410 test mode Use Menu to cycle grey, red, green, blue, and white screens. Menu again exits. It's kind of similar to the LCD conditioning mode you can enable from the menu, except with grey, and without any writing. The second test mode allows you to access a more complete "Innolux" factory menu Power off the screen, hold the Brightness/Contrast button and menu buttons, whilst doing so press power. When the screen switches on wait for all the lights to come on, when it does this press the Preset Modes button.. You should now see the blue factory menu to the left of the screen.. Perhaps there are some other button combinations waiting to be found, but it's hard enough to get it to do anything even knowing which buttons to push thanks to the capacitive buttons!