Re: Adjusting brightness in Fujitsu LIFEBOOK E8410 on Windows7 platform
RU using the right Video/Graphics Adapter driver. If yes, then it sounds like your hardware doesn't have the capabilities to run whatever your trying to use.
But as a last resort, try running DriverScan 2012 to see if it recommends a newer/different version driver. You can find it posted within the HOME button (upper left corner of this page.)
It's also possible that you have a hardware problem...