TV transmissions often include electronic information-such as control signals-near the outer edges of the TV timings. These are not meant to be visible, so native HDTV timings are overscanned such that the edges of the display appear offscreen when viewing TV content. When viewing other sources, such as games or the Windows desktop, the image uses all of the TV timings, resulting in some of the image being cut off.
The NVIDIA graphics drivers include an Resize Desktop feature that lets you compensate for HDTV overscan so that the entire desktop is visible. However, this feature is not available for 480i or 480p timings. In this case, to view display elements that appear offscreen, NVIDIA recommends using the Resize feature to pan the desktop. You can access the Resize Desktop controls from the TV Settings page of the NVIDIA panel.
Please note that when using NVIDIA 3DTV Play software with an HDMI 3D TVs, the NVIDIA driver Resize Desktop compensation feature does not work. As a result, the feature is disabled when you are using an HDMI 3D TV.However, many of the new 3D TVs have a built in option to fix the display size and allow the desktop to be seen.