timing our php's....

I have lots of includes in my main file every include generates a graph and these graph's datas come from an enormous mysql file when i want to plot 4 graphs on the same page it doesn't but when i want 3 it does... I tried lots of times i disable graph 1 it shows the three, then i disable the third it shows the other three, i disabled the 2 of them afterwards it shows the other two. Believe me that i tried all the probabilities... So i wanna ask that is there a way that slows my main.php to make time to the script to generate the fourth one on the fly??? it can be java either but plz nobody say:

.
..
...
for{$i=0; $i<99999999999; $i++){ }
include ("graph04.php");
...
..
.

there must be a better solution...

hey... this might sound like a lame solution (:rolleyes but could you not just have one graph, then have a link to go to the next page which shows the next link... etc?

Otherwise, I'm not sure how you would solve it! sorry!!