Subreport - Print Preview is Blank - Setup Problem

[cadsvc]

BACKGROUND:
I have 2 reports that share a common field.
I opened report (1) in design view.
Made sure wizard incon was active.
Expanded report footer section.


Clicked on subreport icon.
Selected report (2) to add to footer of report (1).
Selected common field.
Selected Ok.
Saved report.
Open report (1) in Design View.
Made sure field for report (2) fits completely in footer of report (1).
Ran report (1)
Report (1) shows correctly.
Report (2) should be in the footer.
Report (2) is white space.

QUESTIONS
QUESTION 1 - Are there things in PROPERTIES settings I should set to see report (2)?

== (GROW is - Yes) any more?

QUESTION 2 - Different DB.... If Report (4) is one Portraite orientation. Report (5) is landscape. Is this a problem?

[weekend00]

report(2) is blank: data source for report(2) may not correct, or common field setting is not correct

Question2: if report(4) and report(5) is in same positions as report(1) and report(2), there is no problem. otherwise, I don't know what are report(4) and (5).