WHen I have a multi series line chart problems occure when I have missing data points. For example: I have one serie with 3 data points (monday, tuesday wednesday) I have one serie with 5 data points (monday to friday) I have one serie with 1 data point (thursday) I have tried to ways of solving the problem each with different problems: 1) Only take care of the points you have whcih will result in have the first of each serie above each other 2) Fill in the missing values but then the line goes to zero on these points Does someone has a solution on this?