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1.make sure you installed driver for your video card.
2.
Control Panel->System->Advanced->Performance Settings->Visual Effects
In Custom selections, deselect the effects you don't need, i only selected effects (1,2,3,6)count backwards.
2.
Control Panel->System->Advanced->Performance Settings->Visual Effects
In Custom selections, deselect the effects you don't need, i only selected effects (1,2,3,6)count backwards.