Extra white space in table

I've got a table with a header, group, and detail row. The detail row
is collaspable however when it's collasped there is several lines of
white space between the parent groups. How do I get rid of this white
space?
Thanks in advance for the helpIs it possible that the white space is really the detail row, and it is
not shrinking as expected? (I've had this same problem before...) If
you are supressing just a column or two, but not hiding the entire
detail row (such as setting visibility --> hidden property based upon
conditional expression) then you will get the spacing issue as
described.|||Thanks Matt
That was the problem. I was setting the visibility at the cell level
when i should have been setting it on the over all row. thanks for the
help
Mathiassql