Reports - Running total not working properly

[Beacher]

Hi all,

I'm having troubles with a report I've created. You make some
selections on a form which then sets a reports filter property and
opens the report, this works fine. One bigger problem I've had is that
any of my running totals are still showing totals as if there was no
filter.

I filter on 2 things one being a customer, two being a date. If I
select a specific customer the totals will properly show total spent
for that customer, but if i run the report with that customer but also
select a date range, it will show only the data within that date range,
but the running totals still show totals as if there is no date range
(I'm using Sum(amount) in a textbox.

If anyone could help me out it would be greatly appreciated,
thanks!