To pan a large desktop on your HDTV
Note: This control appears only under Windows XP. Availability of the options discussed in these steps depends on your specific HDTV configuration.
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 HD display.
Select the Do not resize my desktop button.
Select the Allow panning when my mouse enters this region check box.
Use the slider to set the size (between the Larger and Smaller settings) of the region you want to pan to see the edges of the desktop/picture being cut off.
The preview window shows the panning region increase or decrease as you move the slider.