forms/subforms update

[Chris]

I hope this explanation makes sense.

I have two forms (A and
B) that both contain a subform. On form A I choose by means of a combobox
the records that need to appear in the subform (combobox contains list of
product numbers, subform shows composition of product on continuous form).
Now I would like by clicking a button to open form B so I can make changes
in the composition. Form B also contains a combobox with the product numbers
(because I'm using it also seperately) and a continuous subform for the
articles. After closing form B I would like to see the changes I made in
form A.
Is there a way to do this and also avoiding to have to use the combobox each
time I change forms.
When trying to explain this I noticed that there's something odd happening
with the sorting in the subforms. When I make a change in the composition in
form B the order of the articles has changed when I open form A. When I
close form A and open form B again, I also get the changed order there. What
is happening here???

Thanks in advance for any help with this.

Chris