Chaps, Another hair-pulling, teeth-gnashing incident at my end. Again. I do seem to have the most unusual issues appear from seemingly nowhere... This time, my monitor has started dimming itself. I noticed this when I returned it from sleep the other day; I thought a reboot would sort the issue but no joy. I then upgraded the drivers for the monitor and the GeForce Experience but nothing. It actually blue screened when installing the GeForce stuff, so I rebooted and watched it this time and it seems to dim shortly after POST and stay dim through to desktop. Hitting the Auto-config button brightens it up to its prior level for a few seconds whilst it does its thinking, but then it drops back off to dim again. There's no play in the menus for adjustment upwards and nothing in Win 7 power settings. Is this backlight related and, if so, why does it get brighter when trying to auto adjust? For reference, the BSOD messages were 0x0...7E and something called nvlddmkm.sys which is apparently Nvidia driver-related. The primary monitor is fine, so doubly weird. Any assistance gratefully received!