still problems with adjusting pressure on my machine

when I bring up the manual for getting into the settings on my respironics remstar auto m series with a flex it tells me to plug in the power unit to the back of the machine while simueltaneously holding down both the left and right arrows. When I do this I get one beep, never two, and I can't access the proper controls. (Two beeps brings you to clinical settings). I know that this can be done because I did it once before about six months ago. I'm just missing something simple; what is it? sorry for this repetitive problem.I promise to write it down!

Nice to read your post. I have the same machine and problem. How do you change the pressure on your machine?

Thanks,
Neil

Respironics REMstar M Series (CPAP or BiPAP): Unplug the power cord from the back of the CPAP machine, then hold down both the left and right arrow keys while simultaneously plugging in the power supply. Once the device beeps twice, release the buttons. After you hear the two beeps, you'll see the word setup in the lower right corner of the LCD screen. When you select setup you'll be in the clinician's mode where you can adjust every feature of the CPAP machine, including the pressure setting.

http://www.apneaboard.com/adjust-cpap-p ... tup-manual