Running windows 10 on a 1080ti, running hdmi out to a denon stereo that passes through to my 4k tv. Problem is since the latest nvidia update (390.77) I lose audio completely when starting the game in full screen mode, this includes exiting the game and going back to windows. In order to fix it I need to select realtek audio as default audio, then switch back to nvidia high definition audio, then sound works again in windows until I try to start the game again. This only happens in ESO, I tried a couple other games, (ark and gta v) both work fine with audio in full screen mode.