I have noticed the gamma or brightness of my monitor extremely low for some reason for a considerable period of time . I have played video cd's in windows media player and although I can see , it's dark . When I see a picture , it's dark . But when I take that picture in paint shop and manually increase the gamma , the picture is allright . I tried to increase the brightness of my monitor by using the buttons ( samsung 14 inch syncmaster 450b) with no luck . From where can I change that setting ?