Thanks Fran. I feel more now that it is a physical problem. At first I thought it was a setting issue, but it just doesn't make sense that the x-axis on the joystick would suddenly have no effect on any sound in any mode of the keyboard. I bought the KMA from Sweetwater, and I just happen to live in Fort Wayne, Indiana, so I can just drive there and they will take a look. It's a really cool place, like Disneyland for musicians. I'm sure someone there will figure it out as they have great customer service.