Can anyone point me towards the setting or registry entry for the screen dimmer timer? 30 seconds just isn't quite enough for older eyes and slower pages.

A search here didn't find anything, but I may well be searching for the wrong keyword.

Just to clarify, not the backlight off timer, the backlight dimmer timer, or the brightness. I'm looking to extend the number of seconds before the screen dims.

Sorry if this is obvious... or I'm missing something... or both.

Thanks - Cedar