i need help with video drivier i think

[agogdata]

Suddenly i found the screen resolution unsatisfactory so i tried to change it and there were two displays to choose between in display option. as the pictures shows the first display has only two resolution options and the second has many but no matter what i choose and click on apply/ok it doesn't change unless i click on 'Extend my Windows' and it doesn't really change it only changes the resolution option

http://imageshack.us/photo/my-images/854/92159662.png/

http://imageshack.us/photo/my-images/191/26551085.png/