sorry if this is a stupid question but i'm new to TV. how do you stream content from your computer to your TV? the checkbox that says "Show only the synced items on my Apple TV" in iTunes is unchecked but it still only shows what's on the TV. is it because i have Custom Sync instead of Automatic Sync? i'm running Windows XP SP3 with the latest version of iTunes and version 2.3 on my TV if that helps.