I noticed that a new driver was available for the Denon AVR-8500. Accordingly, I removed the existing Driver (2.04.004.0143), downloaded the newer iteration and (2.04.004.0165) despite multiple efforts to load the new driver, it never appeared as a possible selection. This is despite the software indicating that new updates were being loaded. Perplexed as to why this keeps happening? I reloaded the older driver, which again was the only one visible. It would be most helpful if any new posted drivers actually indicated what new or different functionality was being invoked.