I remember when 4.4 came out, the optical out was thoroughly hosed for people who use the ATV as a simple audio-only bridge to an amp, with no HDMI cable attached. I was able to downgrade to 4.3 in time and have stayed there ever since. I've since heard people complain about subsequent updates that there can be a burst of static when optical commences. What's the current state of the ATV2 WRT optical out and these and any other issues?