On 24 Mar 2010, at 10:50, Nobumi Iyanaga wrote:
[...]

> Another bug is that with some footnotes, the main text area is made sometimes too large, with a large blank space at the bottom of the page, above the footnotes.
> 
> This is harder than the other cases to fix.

This problem of large blank space is very common.
Unchecking 'Prevent widow/orphan' may improve the layout. Also, in places where paragraph styles change, inserting an extra Return, instead of using paragraph spacing, in the body may reduce the unwanted blank space.

Hamid