Doug,
There has been some discussion on this at the Hometheaterforum web site. It seems that many H/K owners are tracing this shut-down problem to the H/K's finiky power supply. Apparently, H/K receivers can't handle an over unruly power coming from the wall. Appartments are the worst, but it can also happen in a single family house if you have too much on that curcit or if you have your drier, microwave, and blender goning at the same time can cause a power draw and give you noisy power in the entire house. It might be worth trying out a power conditioner or a current stablizer.
Bestboy4
