Bought my Prophet 5 brand new about a year ago, has never left the studio. All of the sudden, the synth will not let me change the program select buttons. I can change the group and bank, but not the program number. When I press 3, the record button starts flashing. When I press 6, 42C comes up on the screen. Any help would be greatly appreciated. I've has zero luck getting a hold of anyone at Sequential support.