Hi, just got the px-350 and noticed from the start a glaring problem. It always resets to factory defaults after you turn it off. This is replacing an acoustic piano for my wife who just wants to sit down and play and not have to go through all the settings to make it sound like what she likes. I see it has a back up setting but after turning that on, it still resets itself. Am I missing something or does my piano have a defect? From what I read the registrations might be an option also but this is obviously a complicated process and I haven't tackled it yet. Any help will be appreciated. To be honest, if it had been clear that this thing reset itself every time it would have been a deal breaker for me. Thanks