There were a flurry of posts about this a few weeks ago but nothing much recently so I'm wondering if this issue been resolved for those who encountered it, possibly in software update 4.0 or 4.1? If not, what has Tesla's response been to you about it? Are they working on a fix or is this simply the way the sound system creates the surround affect from a two channel source? Is this an issue at all with folks who have received the standard sound system? Thanks for your replies.