pwmgen

I'm trying to configure w/pncconf. I think everything is wired correctly. When i get to the part where i choose the number of pwmgen (which I assume that I need since im using pwm servo drives) it will let me change the # from 0 to 3 but it always goes back to zero when you press enter or go out of the box. please help.

The "PWM" channels are set up on the sserial port 1 tab for a 7I77
(you must select internal 5I25, 7I77x2 and accept changes before the sserial tabs appear)