I just had a complete Infinity System installed in my home..I have mastered the Infinity control with the exception of programming the fan speed. I followed the directions in the manual..press schedule then fan button..then i am supposed to see a fan speed screen that i am supposed to be able to adjust the fan speed for each time period by using the time +/- button. When i press schedule then fan..nothing seems to happen..the standard program by day sceen comes up and when i hit the time +/- , the start time for the highlight period changes. Am i missing something?