Subforms

Hi! Sorry for my lack of terms when trying to explain my problem, but I am a
newbie. Here goes the question. I have a Main form, which is embedded with
3 subforms, When I add a subforms to the main form, for some reason, the
subforms are not functioning the same way as the its original form (i.e. The
Main Form is titled Copy of frm Global, and in the Copy of frm Global it has
Demographics subform, Services subform, and Program Inf subform ( each of
these subforms obviously was created as an individual form first) so anyways
the original forms for each is functioning properly, but when I go to the
Copy of frm Global, the subforms are not functioning properly. I hope this
makes sense.... Please help me... I run into problems right after another...