iTunes audio
I was on iTunes tinkering between my computer and Apple TV. Now I have no audio on iTunes on the computer. I have audio on the computer for other sites. I'm sure I did "something" and now I can't find my way back. Help!
Apple TV
Use Edit > Preferences > Playback and look at the entry for Play Audio Using. This will normally be set to either Direct Sound or Windows Audio Session. Changing to the other setting may help. If not set back to the first option and apply once more.
For further advice see Troubleshooting issues with iTunes for Windows updates.
tt2