Something I have learned about printing with subsummary parts.
Text within a subsummary will break across page boundaries but different subsummaries will not break across page boundaries.
Just to explain what I mean about different subsummaries..
It is still the same subsummary part it is now summarising on a different value. If it is summarising on a number field, all records that have the number 1 will be in the same group, or all records that have the number 2 will be in the same group etc.
If within a group some text is required to break accross the page boundary it will. If however group 1 ends halfway down the page and group 2 requires a whole page, group 2 will start on the next page. Not below group 1 on the first page. This leaves a big gap on the bottom of page 1.
Why do subsummaries behave like this?
I'm having the same trouble & wish they would fix this. The workaround is going to be a pain .. either to create and delete additional line items on the fly for printing that look like subsummaries or have my users break their larger paragraphs into smaller individual line items. Did you ever find any better solutions?
Can you attach the file, or at least save a clone and put in some sample data?
I don't know if it applies in your particular situation, but one rule of thumb I've discovered over the years is this:
If FileMaker cannot put one entire occurrence of all page parts on a single page without sliding, then the first part that will not fit will move to the next page.
That being the case, it might be worth shrinking one or more of your parts and see if that helps.
Here is a sample. Of course it is set to break across boundaries (and not set to break before or after occurrances) http://www.minnetonkamusic.com/ContractSample.pdf
And here's an example of it correctly breaking across the body when I remove the sub-summaries: http://www.minnetonkamusic.com/ContractSample2.pdf
I was asking Chris to attach the actual FileMaker file (or a clone with sample records added), so we could look at the actual layout he refers to.