Look for screen resolution, try making the adjustments here to the one your interested in setting it to. If you navigate to the Windows 'control panel' and have the control panel set to show all the icons contained in it (in other words, when you open control panel in Windows 7, you will see a drop down menu to the right hand side of the window, this menu has three choices to choose from, by category, small icons or large icons, choose either large or small icons, now you should see a Nvidia control panel icon listed alphabetically in the list of shortcuts that are now visible) Please double click this Nvidia icon, once the Nvidia control panel appears, there should be options listed in the control panel's menu for adjusting the various screen settings.