It appears this is still an on-going issue for the internal software. I have three loggers at three different locations. One being the original beta version and the other two being WiFiLogger 2. Several times a week, it will upload to Weather Underground and PWS Weather a -1.0 dew point reading. It happens for all three locations, so it cannot be the location or station. I have two Vues and one VP2. This obviously isn't the end of the world, more just an annoyance.