I created four line charts each with their own set of data (between 5 and 8 lines of data each). The vertical axis contains chemical levels and the horizontal axis contains dates. Three of the four charts has the dates starting at 09-01-2006 and running every three months (not what I want). One chart has the only the specific dates listed (what I want). The date data cells all seem to be formatted identically. I did notice that the formatting of the date line of the one chart is different that the other three in that there are less options for that one. How do I get the other three charts to display only the dates listed in their respective data set?