Windows 8.1 Known Issues:

- [355.50] ShadowPlay captured video doesn’t play back on Windows Media Player at 4K 60 fps. The VLC media player does play the ShadowPlay captured video.
- With a 3DTV connected and the resolution set to an HD3D resolution through the NVIDIA Control Panel, the display flickers constantly after installing the driver via INF over driver version 320.49. [1315116]
- [3DVision] While a stereoscopic 3D video with stereoscopic 3D enabled is played, the monitor refresh rate switches to 60 Hz after changing the resolution using the Windows control panel. [1314811]

Windows 8 Known Issues:

- [355.50] ShadowPlay captured video doesn’t play back on Windows Media Player at 4K 60 fps. The VLC media player does play the ShadowPlay captured video.
- [Optimus, Notebook] After installing the driver, the Device Manager includes an entry for the NVIDIA Virtual Audio Device but the entry has a yellow bang. The NVIDIA Virtual Audio Device is not needed nor used on Optimus notebooks, so there is no effect on your notebook function. To remove the yellow bang, reboot your notebook.
- With a 3DTV connected and the resolution set to an HD3D resolution through the NVIDIA Control Panel, the display flickers constantly after installing the driver via INF over driver version 320.49. [1315116]
- [Video, Notebook, Hulu Desktop] When attempting to play videos using Hulu Desktop, there is audio but no video. [1000017]
- [Video, Notebook, Internet Explorer, YouTube] The NVIDIA Control Panel video color settings have no effect on YouTube flash video playback within Internet Explorer 10. [999485]
- [SLI, GeForce 500 series, DirectX 11, Dragon Age II] Shadows flicker in the cutscene when SLI is enabled. [849235]