Windows 7: Intel HD Graphics - Power plans issue

If I change the power plans on the Graphic Control panel nothing happen, only change the brightness.
before, when I buy it and until 5 days, if I changed to maximum battery life does:
Change background, Color Depth to 16, and brightness.... this isn't happens any more.
How can I make it back?? all defaults settings: background, Color Depth..... etc.



Laptop: ASUS K53E
Graphic: Integrated Intel® GMA HD
Driver: the Original from ASUS page (8.15.10.2509)
OS: Seven Home Basic X64

Thanks in advance

I would guess this have something to do with the settings of your included program for the laptop. Look for some kind of advanced settings in the included program and and see if you can find anything there. Otherwise an idea could be to provide us with a screenshot.