How do you label the x and y axis of your choosing?

How do you label the x and y axis of your choosing?

Hi,

I have just recently started to use Zoho spreadsheets and I am overlooking something but I can't figure out what it is.  When I edit my chart, I give it a title and each axis a label.  I save and publish the chart along with the sheet but when I display the chart the x and y-axis are labeled X-Axis and Y-Axis respectively.  What am I missing that my labels are replaced?

Thanks for any help.