Don...believe it or not, the body fat calculation will help you keep the faith when the weight # isn't changing - I've lost 8% body fat in the last two months - lost 18 lbs too - but the body fat # is important because when you're working out you're building muscle which weighs more than fat, so sometimes your actual loss doesn't show up in the weight number - but it will definitely show up in body fat loss! And in the mirror - I've finally lost enough for people to notice!