ResMed Elite S8's screen is frozen. Stuck on RAMP:OFF. Below that, Menu and an arrow pointing up. None of the buttons change anything and I have unplugged it a number of times but it always returns to Welcome and then, the frozen screen as described. Any ideas? Thank you. inja@rogers.com

Despite having a humidifier in the bedroom and the humidifier on my CPAP working, I wake up each morning with what feels like a sinus headache, painful sinuses and what is best described as "hollow head". I can't find out why. Am wondering if anyone has the same experience and any advice. Am wonderi...