There is a bit of a problem on the new Formuler Z10.
The box will on some streams such as ITV HD for example.

It will ask to download an external codec( as it does on z8 pro or Z alpha etc) then reboots.
Sadly this will not cure the missing audio and will ask to download and reboot to install again.

Over on the formuler forum this appears to be a bug and they advise to wait for a fix.
There is no fix via updates/reset or download on the market place for the z10.

It means the box won't play a-lot of VOD and it affects quite a few streams.
Until the fix is done I cannot sell the box.