In my earlier response, I had tried to print the weekly logs and charts from a secure PC that does not permit internet downloads. I've now tried to access the same logs and charts from a PC that is not part of a network. From this PC (self assembled from discount parts), which allows downloading of drivers and viewers, everything about the various charts both works and prints. The charts show three graphs, each with day as the x-axis: the graphs are daily weight, pace, and distance. The weekly log includes one stacked bar chart, with week as the x-axis: each bar shows a week's longest run in red (bottom of the bar) and a week's total mileage in green (top of the bar).