I am not certain of the technical factors; but I recall being surprised that it was much more complicated than a simple ON OFF. It was very costly at the time (these were under warrantee though) and the tech folk said that one bad switch had cause one of the MBs to go bad?? It is a box behind the button and appears simple? roger On Nov 1, 2005, at 11:36 AM, Hector I. Macedo wrote: > Roger, thanks for the input, is the switch the type that just > powers of an instant or it keeps the juice going through? > >