(look below the slider to see the settings) Click on OK.
To change the resolution to 1280x720 pixels:
Position your mouse over the windows desktop (anywhere where there are no programs or open windows) and click on the right button, move to the 'properties' item on that menu and click properties.
On the properties window click on the 'Settings' tab. In the lower right there is a box labeled 'Screen area' with a slide bar in it.
With your left mouse button click on the slider and move to the right to change the resolution to 1280x720.
(look below the slider to see the settings) Click on OK.
A 'Display Properties' box will come up starting "Windows will now resize you desktop. This could take a few seconds, during which your screen might flicker. ... " Click on the OK button and a new window should pop up "Monitor settings".
The Montor Settings window says "You resized your desktop. Do you want to keep these settings." If you click Yes, the new settings will be saved. If you do nothing, or click No, the old settings will be restored.
You can try other settings if you wish, but not all combinations Windows will allow will provide a clear, flicker-free display.