Look on your keyboard....there should be a up/down screen brightness. It looks like a little sun , one with a up arrow and another with a down arrow.You have to press Fn then the up or down. Look at your computer owners manual. The drivers that came with the card (which is old and doesn't have current drivers available) are not fully functionable...the Control Panel will not work. Go run Windows Update and install the relevent "Recommended" or "Suggested" updates..there are updates with netframework and wdm. For less than $30 you can buy a HD5xxx series card which Windows 8.1 supports...that is your best bet.
Intel I7 960 @ 3.87ghz *Intel DX58SO *AMD R9 290 4gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit ** Toshiba P75-A7200 * Intel I7-4700MQ * Windows 8.1 64bit
***** cetera fallunt, ludere mortuus ******
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