Apple TV (2nd generation) - Manual (Page 30)

30 Chapter 4 Problem? No Problem. Chapter 4 Problem? No Problem.
If Apple TV isn’t playing your photo albums or slideshows
 Make sure you have photos in your photo library or in a folder on your
computer.
 Make sure Apple TV and the computer you’re using are set up for Home
Sharing. See “Setting Up Home Sharing” on page 17.
 Make sure the photos you want to share are selected. In iTunes, choose
Advanced > “Choose Photos to Share,” and then select the photos you want
to share.
 Make sure Apple TV and your computer are on the same local network.
 Make sure Apple TV and your computer are using the same Home Sharing
account.
If noise is coming from your TV speakers:
 If your TV or speakers support Dolby Digital audio, make sure the Dolby Digital
Out setting is correct for your TV or speakers. On Apple TV, choose Settings >
Audio & Video > Dolby Digital Out, and select On or Off.
If you don’t see your iTunes library under Computers on Apple TV:
 Make sure Apple TV and your computer are on the same local network.
 Make sure Apple TV and iTunes are using the same account name and
password.