Daddog, have you checked the cord for damage? Not just nicks and such, but for any odd bumps or not quite right areas. Also, if it is no longer under warranty you could open it up and see if a connector came loose. Other than that, there isn't much that can be done with the USB model. I don't think there is a reset like the joystick port version has, but you could try holding down the three front buttons while plugging it in.