Statistics module under RT 3.0.9

I installed the statistics.
But the graphics wont’t appear.
So the statistics work, but the image does not appear(the graphic).

I installed the statistics.
But the graphics wont’t appear.
So the statistics work, but the image does not appear(the graphic).
create two or three testing tickets, choose whatever queue you want want. open
the tickets and goto the statictics link and see if the graph won’t show
anything. let me know how it goes.