Sound Problem - Going off when Adverts come on!

[simonpopp]

Now then,

Just rigged up my first system yesterday, HDMI from sky straight to TV and sound from sky to Sony BDVEF via optical cable.

Just sat watching the darts on Sky Sports 1 and every time there is an advert break the sound just goes off, I can't do anything apart from turning the surround off and then on again.

Weird or what?

Any help would be appreciated.

 

[simonpopp]

OK,

The ads where about to come on again, so I quickly swapped channels and then back again a few seconds later. It was on the adverts by the time I switched back and it was fine.
Just seems like it's when the first ad starts that it cuts out.

Don't get it !!