A firmware update is available for the TX-NR717 and TX-NR818. This update is available via USB only. The update 1) Improves picture output of 1080p/24 sources; 2) Improves the playback stability of FLAC files via Network/USB and 3) Corrects the sound leak issue between Main and powered Zone2/3 when activating Powered Zones. Information can be found in the download section and product pages on onkyousa.com.