Running Sum problem

[Jackie]

Hi I'm having problem calculating the subtotal amount on
each page of my invoice report.

(Group1: Inovice no), other company information
-----------------------------------------------
(Group2: Item no), qty, unit price
-----------------------------------------------
(detail: Product description)
-----------------------------------------------
(Group2 Footer) Amount calculation->Runing sum(over group)
---------------------------------------------------------
(Page Footer) Total: Running Sum
---------------------------------------------------------

I tested 2 invoice with different numbers, invoice A in
page 1, invoice B in page 2. The problem is:
1. The total amount in page 1 is zero, but page 2 is
displayed fine.
2. I need the total on each page. If i set the running
sum to 'over all' the total in Page 1 is added to page 2
so it is wrong.

I dunno how to do this so any help will be appreciated,
thnaks.

 

[Jackie]

OK I had it done now,

 

[toby]

jackie,
i 've the same questions with u, can u tell me how to make it!?
as my items' unit price possible decimal place and i want the page total on
each pages with decimal places, how to make it?!
thanks in advance.

Toby