Running Sum in Subreport

[This Guy]

I have a main report sorted and grouped by Program, Phase, and Date.

On my main report I have two subreports sorted and grouped the same and
linked correctly to the main report. So far everything is good. But, on my
subreports I have running sums. The running sums work fine when I run the
subreports by themselves, but when I run the whole report none of my running
sums work in either one of my subreports. Why is this? How can I make them
work?

Thanks in advance for any help.

 

[Ken Mitchell]

You may have a formula value that's not being reset to zero when the second
subreport runs. That's the first thing I'd look for.

 

[This Guy]

I'm not sure I know exactly what you mean. How do I check that?