Hi DSayers, as you know always used your firmware and love it......and this may not be a box/firmware issue but I'm clutchin at straws!
Since updating to a later version (and it does seem like this got worse around then) we've had terrible sound issues on a second TV that the box is piped to.
We have a bedroom and kitchen tv whereby the zgemma box is piped to via coax......via uhf modulator. The audio is taken via the phono leads into a phono switcher as we run a freesat box as well that can be switched across the tvs. The freesat sound is fine, but the sound on the zgemma is awful, loads of background noise, we've tried turning the tv down and box up (which does help) and tried every setting going but no real difference. Some channels are worse than others as well.
Any ideas at all? long shot I know!
Rich