Audio missing altogether!

[skittle7]

Hi,

Two days the audio went missing on my GigaBlue 800SE. The box was on standby. I have checked that the TV is not on mute.

I have flashed the latest image onto it (build 643, 3.1.1 kernel) and I'm on BBC 1 and there's no sound.

I don't know what's going on, any help?

[Maxwell]

check the digital downmix setting is on

[skittle7]

Yes, it's showing as on.

The box worked fine one day and then the next, it wasn't. No settings were changed.
Also, if I watch Freeview via a digital ariel through the TV, it's fine. So no problems with the TV..