Fanuc OT control Auto Button

I'm having problems with a fanuc OT control. First I had a Ram Parity Error. I cleared the memory and entered all the parameters.
Now the Auto button doesn't want to work. Whenever I hit Auto, it goes into MDI instead.
Could this be a parameter setting? I changed keypads in the controller and it still does the same thing.
Thanks for any help,
T. Hardy

are you getting other modes like jog etc.
have you reference the machine again

Edit, MDI, Jog and all of that works. It is an Operator Panel A026-0083-C141

Did you reload all the 900 parameters