Graph does not display in cacti0.8.7

[fawzan]

I installed cacti successfully. and i tried to generate a graph according to the tutorail at http://www.click2try.com/tutorial/cacti ... torial.pdf . I did not get any error message while i was going through this tutorial. Although, Graph is not generating. whatz the reason?? how can i solve it??
(Screen shot is attached)

Thanks in advance.

[Linegod]

http://docs.cacti.net/faq#initial_graph_does_not_appear