Apparatuses and methods for driving input data signals onto signal lines as output data signals are disclosed. Each of the plurality of dome switches provides a first tactile feedback to a user when pressed. The video screen is preferably of the touch sensitive variety, having an array of touch sensitive areas located on its display surface with one such area associated with each matrix element 40-75. The percentage signals the loader operator whether the granular material loaded has an acceptable amount of moisture for successful operation of the drying process. Upon the occurrence of a triggering event, the diagnostic information from the high speed memory is stored within a data store for later use. This invention also relates to therapeutic agents related to the polynucleotides and proteins.