I recently purchased a VPAP S. My problem is, the booklet that tells me how to program it is in storage. (We recently moved.) I had another sleep study done last week, and my pressures went up from 25/22 with 2 liters of O2 to 29/22 with 1 liter of O2. I can have a respiratory therapist come out and change it for me, but why should I have to pay her, if I'm able to do it myself? Why the big secret?? Can anybody tell me how to program this machine?