So I try and keep my audio preset on "5ch". Every once in awhile, it is set at standard, and I can tell because the rear speakers are hardly used(even tho they show in the diagram of this preset). I am wondering if anyone knows why this keeps happening, and what I can do to fix it. I can't seem to pinpoint when it happens, it appears random. I've had issue with speaker wire(I have a 2yr old that pulls my speakers sometimes), and that has caused it to turn off with the error "Check sp wires". It's not doing that anymore, just reverting to "standard" every once in awhile. Annoying.