Yes Horizon Box
Under Adanced Settings > Audio Settings >
Dolby Digial Output was disabled - I’ve enabled but it didn’t fix
Audio Output is managed by HDMI, so the other options are superflous (or should be, unless cables are connected…)
Diagsnostics - s/w version ending in 16790297
Toolbox accessed by pressing Menu on controller (silver button)
Options Available under Toolbox are
Diagnostics (78817)
Customer Care - pointless info
Advanced Settings
Home Network Settings
PIN & Parental Control Settings
Preferences
>Favourite Channels
>Skip Forrward
>Skip Backward
>Menu Language
>Transparency
>Info Menu Time Out
>Preferred Subtile Language
>Hard of Hearing Subtitles
>Select Soundtrack Language
>Standby Power Usage
>Auto Standby
>Define Auto Standby After
>TV-Guide Background
>Time Before Programme
>Time After Programme
>Record Current Season
>Disk Space Management