..................do I have? Someone said press and hold the pinpoint button while you turn on the machine, (In my case the G2). On my unit a big number ...4 shows up. Does this sound right......also what are the differences between the versions... or for that matter how many versions are out there? Are some hotter than others........anyone care to chine in. Obviously I'm sitting here bored and trying to expand my horizons.................without drugs or booze!!!!