I'm not sure the software update really fixes the problem. I have a unit that supposedly had the update when I purchased it, but I still experience 'freeze up' and no audio from time to time. Just had it happen last night...went to play a cd, powered 970 via remote...no sound, no audio control. I was able to power it off via the remote though. Turned it back on (via remote) and no change. I had to power it off using the back master switch then all was well. I think unfortunately this is something we'll have to live with as it doesn't appear the software update really fixed the problem. Wish I'd kept my 990.