I am setting nitrox for the first time with the Atom 2. I have figured out how to get to the nitrox setting. When I scroll through Gas 1 to 32% and want to save that setting, the computer continues to flash 32%. It does not save "32%". When I press the "A" button as instructed, it scrolls to Gas2. When I go back to Gas 1, 32% is still flashing. How do you make it stop flashing? Or, is that what it is suppose to do and it really is saved? HELP. Need this info ASAP.