To adjust the desktop size on your television
Note: These instructions apply to Windows XP. For Windows Vista and later, see Resize my desktop - Windows Vista and later.
From the NVIDIA Control Panel navigation tree pane, under Display, click Adjust desktop size and position to open the associated page.
Click the image that represents your TV.
To reduce the size of your desktop on your television screen, continue to click the (-) button on the image that is labeled Size: until your desktop is reduced to the size you want.
To enlarge the size of your desktop on your television screen, continue to click the (+) button on the image that is labeled Size: until your desktop is enlarged to the size you want.