How are they incorrect? Please be more specific. Make sure you set the units correctly in GaroNav configuration to be specific for your locale. That is, if you are in the US, make sure its set for "Imperial" and if you are in Europe, make sure its set for Metric. Also, make not that the speed does not show with the decimal. So, if you get something that looks like this: 3456 thats reall supposed to be 34.56 You can modify the skin jpg to have a decimal point there. Thats what i did and it looks great, and the speed is very accurate.