Hi Folks,
I have a simple spreadsheet showing my utility bills for each month. From
this data I created a vertical bar chart for the most recent 12 months of
bills. Recently when I added the latest month's bill and removed the oldest
month's bill to make the graph show only 12 months of data, all the vertical
bars changed to single pixel vertical lines of the same height that the bar
should have been. The new number is within the range of other data. If I go
back to the same data that was used for the previous 12 months the chart
automatically returns to a bar chart. What would cause the chart to change
from vertical bars to vertical lines and back just by the inclusion of a
different number?