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Enhanced Display Driver, DirectX, and Video Capabilities
WindowsXP SP1
Release 40 supports WindowsXP SP1, including support for Windows XP Tablet PC and eHome technology.
Release 40 provides support for bugcheck EA callbacks, enabling OCA EA failures to be resolved more quickly while assisting to identify failure causes?such as due to chip instability or overclocking.
Rotation Support
Release 40 supports desktop rotation1, which allows the user to rotate the desktop by 90, 180, or 270 degrees.
Controls
Desktop rotation is controlled through the NVIDIA display properties panel, or integrated seamlessly with WindowsXP TabletPC.
Graphics API Support
NVIDIA Rotation includes support for windowed and full-screen applications in all rotation modes for Direct3D and OpenGL applications.
Hardware Platforms
Rotation functionality is supported on desktop, mobile, and Tablet PCs.
DirectX 9 Support
When Microsoft releases DirectX 9 runtime, Release 40 will provide support for DirectX 9, which includes the new vertex shaders, antialiasing modes, and multi-display device support.
Robust Channels
Robust Channels significantly improves driver stability by detecting and recovering from hardware errors.
With NVIDIA's Robust Channels feature, hardware problems?such as system errors caused by corruption on the AGP bus or GPU errors caused by transient thermal or power management conditions?will not cause the driver to fail.
Video Enhancements
Changes in the video driver include:
Flip Sync functionality support
Support for multiple Macrovision clients
Simplified Video Mirror controls
TV Overscan Support
Depending on the TV encoder used, Release 40 supports TV overscan?allowing the user to eliminate the black borders around the TV display screen. This option is accessible through the NVIDIA display properties control panel.
Additional Enhancements
Improved support for wide aspect ratio screen resolutions.
Improved memory management support for Dualview.
Improved memory management support for OpenGL
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Threaded Mode
