Some of you with a PB Goodknight 420G might be interested in the review at: http://microship.com/resources/reviews/goodknight-cpap.html In that that article is information to alert you so you do not accidently press the button under the letters "Go" and and find that you are trying to set the pressu...

I see that no one has replied to Sinclaj's question: What should I not do to make sure I don't change settings on a 420G????

Perhaps that is something that you should never never do or else the sky will fall.