On October 21, 2014, I changed computers and copied all my data files from old computer into what I believe are the correct locations on the new computer. I've noticed that I when I check "statistics" in WeatherCat, it only shows the data from when new computer was put in operation (October 22nd) to current date and none of my old data. I've searched, but have not found a solution from previous posts. I'm sure it's a simple operation that I'm missing, but how do I merge the data, so when I check "statistics" it shows all my data. Background - Old computer was iMac and new computer is iMac. Migration assistant did not completely work properly, so I had to manually move some data to new computer. I'm using a Davis Vantage Vue. Thanks in advance for your assistance.